My problem is with promises of 'Limitless Power'(.. and it's clean, too!)  Maybe it is, maybe it isn't.  

Warning bells go off, Levink. We are addicted to power, and we have this glimmering mirage, always 20-30 years off, just where it might bless our children, or where we'll be too old to have to answer for it anymore.  It sounds like a 'Fix', it sounds like salesman-hype.

I don't oppose the research, but I'm not sold yet, and find the continual promises of 'Clean-Safe-Plentiful' Nuclear power to have a hollow ring at this point.  

We've got Fusion already working for us at a nice, safe distance.  No Mining-tailings, no waste disposal, no cooling water systems to fail on us..  How much polysilicon development could be initiated with the money and effort that has gone into Politically Connected, and War material Connected energy sources (part of the Nuclear Lobby's push is because the US is developing new Nukes and there is pressure to rebuild an Arms industry, which will need its gogo juice)

As far as 'Moralizing' goes;
  This is a legitimate Moral issue.  It is not one of those 'values' topics that tries to proscribe what people can do in their bedrooms and to whom, or what words are 'indecent' or what pictures constitute 'Pornography'..  it comes down to-

  • Is this safe for us and our Ecosystem?
  • Is this a responsible use of our time and money as we face pollution, energy, economic and climate crises?
  • Are we (with Fusion) chasing Richard Dreyfus' mysterious blonde in American Grafitti.. ie, is this still science, or has it become the new Alchemy?

 .. and so it is all-too appropriate to ask Moral questions about it, even if Moral has become as unwelcome as 'Liberal' in decent conversation.
#  Is this safe for us and our Ecosystem?

All available evidence says yes.

# Is this a responsible use of our time and money as we face pollution, energy, economic and climate crises?

Definately YES. The reactor will cost euro 10 billion. Just compare that to the benefits if it is successful. You are effectively telling me you don't want to spend 10 euro now (assuming 1bln. population of developed countries) for the development of an energy source that can solve all our climate and energy problems our kids will face? Now isn't that hypocritical...

# Are we (with Fusion) chasing Richard Dreyfus' mysterious blonde in American Grafitti.. ie, is this still science, or has it become the new Alchemy?

Nobody can answer that with certainty. I just can argue that the odds are pretty high. We also have some good odds for efficiently harnessing the energy of that fusion reactor high in the sky but still - nobody can give you a guarantee. You make it sound like the first is doomed and the second is certain. Neither is one or another.

As for that idiotic phrase - "fusion is the energy of the future and will always be". The same flawed logic is constantly used by PO "debunkers". They constantly tell us how "oil has been running out for a century now", so of course it will never, ever run out does it? It is short-sighted to assess any alternative technology - fission, fusion, wind, solar etc. based on its performance in the age of plentiful fossil fuels. All of them have still a lot of way to go and a lot to prove.

Funding fusion research makes sense as a long term investment. Indeed, funding should be increased, but new research should be aimed at alternate approaches--in contrast to the "all the eggs in one basket" approach that now exists WRT government funding. As for near-term prospects, I see little reason for optimism. The phrase "fusion is the energy of the future and will always be" would be idiotic if it were not a reflection on the fact that little real progress has been made in the last few decades.

When realized, fusion may indeed be safe, secure, "too cheap to meter", and fun for the entire family, but hanging the label "limitless" on anything related to consumption ignores the reality of the finite world we occupy.

Of course that "limitless" part is pure marketing.

The phrase "fusion is the energy of the future and will always be" would be idiotic if it were not a reflection on the fact that little real progress has been made in the last few decades.

History shows that all energy breakthroughs/research/developments are requiring vast amounts of money and time. Compared to what has been put on fission, oil, oil shale, tar sands etc. fusion is still way underinvested. The problems comes to the upfront costs which for technologies like nuclear were huge, while for fusion are almost prohibitive. It is a much steeper learning curve and nobody had enough incentative to spend the huge resources on it while fossil and fission were relatively cheap.


History shows that all energy breakthroughs/research/developments are requiring vast amounts of money and time.

This doesn't sound correct to me. Steam engines, water wheels, fission reactors... none of these things required huge investment to get going. Of course each such advance is built on the prior technology. E.g. fission relied on the work of folks like Marie Curie. And refining the technology usually does involve huge investing. But the prototypes demonstrate effectiveness first, and the huge investment follows. It almost never happens that folks make a huge investment in some direction that isn't generating some profit along the way. Real progress relies on working feedback systems to correct little errors that start to accumulate along the way. When people invest huge amounts in hopes of some eventual profit that has yet to appear even in any small degree - the end result is usually a disaster.

Steam engines, water wheels, fission reactors (?)

It took an awful lot of money in research & development for the nuclear industry to get to its current state. Which is still not as decent as I'd like it to be, but still much more acceptable than the level of the disastrous experiments like commercial RBMK reactors or the magneseum cooled reactors in the UK.

Steam engines and water wheels are not very relevant here as they have little to do with the way we do things today.

Maybe the experimental prototypes of all of those were relatively inexpensive. But we already have several working fusion prototypes based ot the TOKAMAK technology. Getting from the laboratory to the full-scale industrial application, maturing the technology, finding the weak spots - all of this costa awful lot of time&money.


It took an awful lot of money in research & development for the nuclear industry to get to its current state.

That's certainly true. Today's steam turbine methods to turn coal into electricity are very refined also, the result of huge investments.

My point was that the first nuclear reactor, under the stadium in Chicago in 1942, got a sustained reaction going without a huge investment.

http://hep.uchicago.edu/cp1.html

This was three years after the basic principle of a fission chain reaction was discovered. This was a working reactor, not just some isolated fragnmentary demonstration of some principles involved.

Of course that "limitless" part is pure marketing.

We agree on that, but I think it is worth looking at how limited fusion might be.

Even if operating costs are virtually zero, if the capital cost is very high, then the cost per kW could still be more than a fission plant.

A fusion reactor has similar engineering limits to a fission plant, so a fusion unit might produce 1500MW with a lifespan of 40 years. They are still going to need a hefty injection of capital to replace a significant portion of energy generation.

If the capital cost is too high, they may not even be economic with wrt to other forms of generation. In that case, only rich countries with a healthy economy could muster the capital to build them.

We could end up in a situation where we have a theoretical "unlimited" power source, but be unable to afford to build power plants to exploit it.

If anyone has a handle on the numbers, what would be the maximum capital cost of a fusion plant before it became uneconomic to build?

This is entirely valid point. It has always been the assumption that with technology development costs will drop. But what if the nature of the technology itself does not allow it?

In this case it is entirely possible this to happen, largely because of the material costs for building such a huge plant. I am not familiar what are the limiting factors for fission reactor and if they automatically apply for fusion but your claim that the size will be similar looks reasonable. In this case it does not look good IMO.

Basically the jury is still out. It may turn out that the lower cost of fuel, the simpler safety eqipment and lack of radioactive waste etc. will make up for the other increased costs. But it also may not, we are still in the R&D stage and it's too early to tell. This I guess is one of the goals of building ITER and I am 100% sure that any commercial plant will be built only after it is understood that it will be profitable. 10 bln. is not such a big price tag to find out.

Quote: `...but hanging the label "limitless" on anything related to consumption ignores the reality of the finite world we occupy.'

Yes, the world is finite. It is limited by the bounds and laws of the Universe. But forasmuch as the mankind is not anywhere near them yet, it's safe to say that our (the Universe's) resources are limitless.

our universe  for practical purposes is mother earth   and mother earth's resources are finite
Hey...this resource is awesome.  When I was in Montreal last August, I visited the Biosphere which had a geodesic dome built Buckminster Fuller's designs.  The top floor of the building inside was all dedicated to Bucky's works.  I didn't realize how far advanced his thinking was at the time.  Many of inventions were discussed including cheap, energy efficient housing and many other energy efficient designs to existing apparatus.

I think his ideas are worth revisting as we approach/arrive at a post peak world.

I've bookmarked your link...thanks.

yes thanks for the link   i am left wondering    did the dynosaurs have a "peak fern" forum ?
Not anywhere near them yet? Who says, jackoff?
I'd be happy to see us spend 10 billion for the 'development of an energy source that can solve all our climate and energy problems our kids will face'..  I hope this one can, but it is exactly the kind of hyperbolic promise that my initial response was aiming at.'  The question should be "Another 10 billion Euros?"

From Wiki - http://en.wikipedia.org/wiki/Fusion_power

"Economics

It is far from clear whether or not nuclear fusion will be economically competitive with other forms of power. The many estimates that have been made of the cost of fusion power cover a wide range, and indirect costs of and subsidies for fusion power and its alternatives make any cost comparison difficult. The low estimates for fusion appear to be competitive with but not drastically lower than other alternatives. The high estimates are several times higher than alternatives.

While fusion power is still in early stages of development, vast sums have been and continue to be invested in research. In the EU almost € 10 billion was spent on fusion research up to the end of the 90s, and the new ITER reactor alone is budgeted at €10 billion. It is estimated that up to the point of possible implementation of electricity generation by nuclear fusion, R&D will need further promotion totalling around € 60-80 billion over a period of 50 years or so (of which € 20-30 billion within the EU)[6]. In the current EU research programme (FP6), nuclear fusion research receives € 750 million (excluding ITER funding), compared with € 810 million for all non-nuclear energy research combined [7], putting research into fusion power well ahead of that of any single rivaling technology.

Unfortunately, despite optimism dating back to the 1950's about the wide-scale harnessing of fusion power, there are still significant barriers standing between current scientific understanding and technological capabilities and the practical realization of fusion as an energy source. Research, while making steady progress, has also continually thrown up new difficulties. Therefore it remains unclear that an economically viable fusion plant is even possible."

-- and yes, the line about 'always the future energy source' is snyde, and petty.. and funny (and wasn't from my post).. no less than the Wright Bros' detractors comments about 'if God wanted us to fly' .. but if the Wright brothers were trying to create an antigravity device, they might hit a point where the return on investment was a Divine Signal, too.

The question should be "Another 10 billion Euros?"

And where would you have them rather be? Argh yes, wind, solar etc. The tiny problem that these technologies don't really work has never been a barreer for promoting them as our savers. Or you imagine a civilisation that does not run when it is cloudy or the wind does not blow?

The fusion concept has been demonstrated, and we basically know with a good degree of certainty that we can overcome the remaining technical difficulties. It is indeed a century long effort, but in the end it will bring a century worth result. Our generation of fossil fools will probably suffer a while, then it will turn to nuclear which is also not without issues. In the end the necessary resources to develop fusion will be dedicated, but I prefer it to be rather sooner then later.

It is bizarre that you write this. Wind and solar 'don't work', whereas controlled nuclear fusion is 'demonstrated'? Oh yes, it's the 'concept' that is demonstrated ... well likewise for Star Trek-style energy from anti-matter. Maybe we should try and do that too.

There appear to be extraordinary technical barriers to fusion. I'm not a physicist, so I do not want to try and detail these here myself, but any overview of proposed fusion technologies, even on Wikipedia, discusses them. It is truly depressing, in fact: as if for every possible way out, there is a barrier or limit that we can't get past without yet another complication, which in turn doesn't work because of yet another limit or barrier... and so on. Perhaps it is no accident that we have only been able to generate uncontrolled fusion reactions.

When I first looked at this thread, the confidence being expressed in fusion struck me as so extreme that I thought I must have missed some major morning headline: 'Scientists Crack Fusion At Last!'

Alas...

Argh?

You can say that it's intermittent, but not that it doesn't really work.  It really works, and it scales way up and down, from ambient light calculators to Megawatts.  As solar heating, cooking and refrigeration, it can also displace the need for heating oils and natural gas and more grid power .. and with heating/refridg, the storage is far easier and securely distributed.

Sorry if its boring or sounds like self-righteous solutions.  We keep reaching for that succulent cake, when all this fine porridge is already within reach.  Tough Choice.

I appreciate your advocacy in what you believe in, by the way, and the chance to play tug-of-war on this.   I really got some good info at the Wiki site, today, and think Fusion 'could' be great.  Meantime, I'm more confident in the paltry backups than in the 'glowing promises', and will stick with my little BB's, thanks.

Bob Fiske

'Strive mightily, as lawyers do in law.  But eat and drink as friends.'  Shakespeare

It really works, and it scales way up and down, from ambient light calculators to Megawatts

That's where you have it wrong. They do not scale well if at all. In the world we live in, this is equivelent to (ok,almost) "does not work". Because of their nature they can not provide anything but a tiny fraction of our energy usage and they always have to be complemented by a conventional energy source.

Now if it is obvious to any rational person that we can not run our civilisation entirely on them, or even mostly on them, why do you push them as a panacea? After certain consideration I've come to the conclusion that it comes to distaste of the civilisation we have altogether. You guys just can't wait to see it crushing down and reincarnating into some idilic permacultural state. What a joke... it's true that worst crimes have been done out of good intentions, but this thing is already way too much.

Now if it is obvious to any rational person that we can not run our civilisation entirely on them

Well, I'm a rational person (even got a degree in Mech Eng) and it's not obvious to me :) However, biofuels would need to be a (minor) part of the mix. And storage of surplus wind/solar is the biggest challenge. Also, AlanFBE sees a need for about 20% nukes (IIRC); I hope he's wrong on that one.

Well, I'm a rational person (... Mech Eng) and it's not obvious to me

Hello TODders, especially of the Engineering persuation,

I know this is shifting even more off-topic and my apologies for that. However, how many times are we going to insist that we humans are "rational" when the evidence is overwhelmingly pointing in the other direction?

A "rational" civilization would mobilize and do something about the Peak Oil problem once it learns of it. We should have and could have started doing something back in 1956 when Hubbert first pointed out the problem to the public. But we didn't. We should have and could have started doing something back in the 1970's when Jimmy Carter gave his sweater speech. But we didn't.

One of our biggest problems is that each of us "specializes" in a particular area of knowledge while remaining clueless about other things, important things. So maybe you are a Mechanical Engineer and you feel "rational" and super-smart because you know how to calculate the stresses and strains in a steel I-beam. Or you're an electrical eng and know how to solve Maxwell's equations. Or you're a Chem E and can calculate the enthalpy of an ethanol reaction. But still, you are mostly uneducated in how the human brain works. If you knew, you would not be so bold as to say that you yourself, or any of us is "rational".

The evidence is there (wars, mistreatment of others, failure to respond to PO, to GW, etc, etc). Open your eyes and see it.

It is only when we admit we have a problem (how to act rationally even though we are mostly irrational) that we might have a chance.

Until then, the Market will provide. Take the Red pill.

Maybe you consider yourself rational but you did not address the main reason I pointed as to why renewables can not power our civilisation. Namely that they always have to be complemented by a conventional energy source. Be it some kind of storage or something else (which of course is adding complexity and reducing the overal system efficiency). The other reasons I did not mention are coming from the low energy density and the high cost per unit of output as a result.

The first problem is what is obstructing the renewables development in the near term. After certain level of penetration a number of expensive "fixes" need to be developed to help them go further. The second problem is what will be stopping them in the very long term. After the subsidy coming from fossil fuels is gone how are we going to maintain that vast infrastructure of wind mills and solar panels you are imagining? BTW it is very ironic that people think renewables will be "small and localized". The truth is that if we want anything close to what people imagine from them we need to cover half of the country with wind turbines and solar panels.

Now that you did not address these problems in a meaningful way I don't see how you can claim that your opinion was "rational". It looks more like wishful thinking to me.

The VERY long term, say, 2100 is VERY hard to predict.

Technology has improved in the last 93 years, it is fair to assume further improvements absent social collapse.

 I think that a "just in Time" technology fairy is unrealistic for solutions in the next two decades.  But 93 years ???  Yes I do believe in major advances.  Just not easily predictable advances.

Absent major advances, and an investment in long lived infrastructure starting "soon".

Rail lines today, with conrete ties, can expect to last 50 years of heavy use before rail & tie replacement.  Longer if :slow orders" are acceptable over old track or use is "moderate" aand not heavy.  Concrete ties have really proven their worth over wooden ties in the last 20 years.

Pumped storage plants require rewinding the genrators every 50 years, perhaps once a century for the turbines.  Valves are close to :forever:

Solar assisted electric smelting can turn old rails into new (add some material for wear).  Same for wind turbines.

Today, electric smelting is used for the highest grades of steel and can be used for recycling.  Aluminum just needs electricity and little else.  Aluminum alloys may be cheaper than steel and replace steel in many uses (rolling stock comes to mind).

Electric assisted tricycles are here today and are very efficient.  Not just for people but goods as well.

We are close enough to algae farms to think that they can be perfected in 93 years.  A source of cheap food (with processing), biofuels and materials/plastics.

I find your logic puzzling.  Just because we can not plan in detail every step of the way, we should not start on what we know is the right path ?

Best Hopes for the future,

Alan

Just because we can not plan in detail every step of the way, we should not start on what we know is the right path?

The truth is that we can not even plan for the next step simply because we don't have the necessary technology and we are becoming more and more constrained in resources. Yes we can invest in pumped storage etc.etc. but can you even try to estimate how much it will cost the society? How much we are going to need to reduce our standart of living? Are we going to be able to apply it everywhere? What is the realistic timeframe from scaling it up?

The challanges we are facing if we go that way are overwhelming. They would require constant government intervention and are likely to fail after the resistance from people and businesses becomes unbearable. Already in Germany and Denmark the discontent from the costs of the "green" policies is becoming evident. Now multiply it by X times to find what the future holds.

And you don't know if this is the right way. In our system the market decides which is the right way. I am all for the government to level the playing field by making the polluting energy producers pay for the externalised costs they cause, or support immature technologies, but that's it. From there on it is the market that decides and this is the way it has to be.

All of this would look otherwise if we did not have viable alternatives, but by insisting on this part of the energy mix only you don't even realise how badly you are undermining its cause in the long term.

You stated "viable alternatives" exist.  I fail to see any except those with significantly higher economic & other costs.

I have selected a mix that doess not include current solar PV in high latitudes in cloudy climates (Germany) but things that close to current price levels and are cheaper once extermalities are considered.

Electrify freight railroads.  How ?  Exempt them from property taxes if they electrify.  Trucks pay no property taxes (directly or indirectly) on their ROW, why should RRs ?

I have listed before politically doable steps to fund much more Urban Rail.

Phoenix has announced plans for two 1,000 mile tranmission lines to Wyoming.  A billion a piece.  Add 50 to 70 more, make them technically compatiable, and we have a good North American grid !

Pumped storage, on a good site, is cheap per MW & MWh.

BTW: or Germany, one of the externalities is dependance upon Russia.

Again, what are the viable alternatives ?

If you saw 55% nuke and the rest renewables & pumped storage & improved transmission, I would agree with you.  That is a viable alternative to 23% nuke, balance renewables.

Best Hopes,

Alan

"If you saw 55% nuke and the rest renewables & pumped storage & improved transmission, I would agree with you.  That is a viable alternative to 23% nuke, balance renewables."

That's about what I would like to see in the long term. But I don't think we will see it. First of all that's not the way complex system evolve. Basicly they evolve following the natural path of least resistance and this spells more like "coal". Especially when the very real energy problem starts to replace that abstract "climate change" problem. Let's take a look at the country pursuing most agressive renewable energy program - Germany:

Even though renewable energy has grown rapidly in Germany, its contribution to total electricity consumption remains relatively small. As Figure 1 shows, domestic renewable energy production is only a fraction of total electricity demand. The substantial growth in renewable energy production has not kept pace with a six percent increase in Germany's total electricity consumption since its low point in 1993.4 Thus, the substantial increases in renewable energy use have not reduced conventional electricity demand.

http://www.globalchange.umd.edu/energytrends/germany/2/

Now if a rich country like Germany can't make it how do you suggest poor countries like China or India make it? How are you going to defend building pumped storages for example in countries like Syria, Egypt, Saudi Arabia?

I see renewables as mostly suitable for fuel (biodiesel, ethanol from cane or cellulosic ethanol if it makes it) or for powering remote or isolated areas. Hopes that they (excluding hydro) will replace a major portion of the baseload electricity generation... will remain just what they are - hopes. Sorry, but this is what my observations are telling me.

Per analysis posted on TOD (I checked out and the #s seemed good), 44% of the MWh generated in 2007 in the US from new electrical generation installed in 2006 will come from renewables.  40% wind + 4% a mix of all else (new hydro, solar PV, landfill gas, geothermal, biomass waste).  If more WTs were available, the % would have been larger.

After having followed the wind industry for 2+ decades, it is FINALLY about to cross a cusp from "large scale demonstration + gain operating experience (confidence)" yo early stage maturity as a significant source of electrical generation.

Wind is not truly through that cusp yet.  All Vestas WTs in a large offshore wind farm were recalled for bad gearboxes.  Such issues need to be worked out before wind becomes dominant.  And they will be :-))

Check out the AWEA site some time.

http://www.awea.org/

I chekc out "projects" every few months.

best Hopes,

Alan

"Because of their nature they can not provide anything but a tiny fraction of our energy usage and they always have to be complemented by a conventional energy source."

As you said yourself, any predictions of proposed technologies as they existed during the age of oil would be badly misleading.  The lack of build-up of Solar Electric and Solar Heating is fully a function of the availability of cheap oil.  There were booming businesses in the US at the start of the 20th century for Solar Batch Heaters which went bust when oil furnaces became available with ridiculously cheap fuel.  The WindGenerators on thousands of American Farms were beautiful machines, and many would still be producing voltage to this day, if Rural Electrification hadn't made them seem less worthy.

 I don't propose that they (Solar and Wind solutions, generally) will fill ALL our energy needs, and certainly not those 'needs' as seen in our energy-corpulent perspective today.  In fact, I have said before that I don't expect ANY of the proposed sources can do it.  There is simply no one substitute for the Oil we've so fully enjoyed.  These technologies WORK, and they LAST, and should be maximised.  I don't think Nuclear can survive WITHOUT the oil subsidy as an economic environment to flourish within.  Complexities, Monopolies and another reliance on a steady diet of a diminishing poison make it a poor option to rest our hopes on.

Stop this techno-cornucopianism, LevinK!  The problems are immense, and the solutions nowhere in sight, in mind, or even on the Internet!  It's another boondoggle!  Hope is neither a solution nor a plan.  Hell, it's the last evil in Panodra's box!
Stop this techno-cornucopianism, LevinK

Well, if I'm a techno-cornucopian then so must be Edison, Maxwell, Flemming, Write brothers and many others. Personally I prefer to be put in the same group with them, than with that always-right, but largely unknown group of the defeatists.

I'll bet Dr. Fleming and the Wright boys knew how to spell, at any rate.

:-)

Not sure what they have to do with the probability of fusion coming online any time soon.

For example, Fleming observed that mold on his bacterial cultures seemed to be killing the bacteria. The Wright bros. combined their glider experience with a finally-light-enough IC engine to make their enterprise, ummm, fly.

As has been remarked already, we have a perfectly good fusion reactor at exactly the right place - 93 million miles away. This planet is bathed in incredible amounts of energy.  The last thing we need is to be beholden to a grandiose, centralized fusion empire, because you know that's how it would play out.

- Steve

As has been remarked already, we have a perfectly good fusion reactor at exactly the right place - 93 million miles away.

Good, I noticed. And? Can I plug my electric heater in that fusion reactor? I may not be a good speller, but I've had periods in my life where I've been cold and hungry and it was not fun, you wise ass.

"Good, I noticed. And? Can I plug my electric heater in that fusion reactor? I may not be a good speller, but I've had periods in my life where I've been cold and hungry and it was not fun, you wise ass."

Yes, my friend, you can indeed plug into that very same fusion reactor, and I'll bet you do it every day. You do so every time you use electricity derived from any fossil fuel, or indeed hydro or wind, if you think about it. Not to mention the obvious PV. Or haven't you figured that out yet, you wise ass?

I too have been cold (in fact, I just had to put another log on the fire) and hungry too, and no, it's not particularly fun. But that does not lead directly to "we need fusion", or even "fusion is possible on Earth".

What is it about grandiose, centralized, silver techno-bullets that so entrance people? It seems to me we need to put our attention and resources in more realistic and human-scaled directions.

Cheers,

- Steve

Centralized generation and transmission is more efficient, economic and reliable than your dream of "human-scaled" power production.  For a variety of reasons, human-scaled power production costs more (in a variety of ways) and is less efficient.

Read the earthvan article linked a coiple of days ago and think "lead acid batteries every 6 to 8 years".

Best Hopes for centralized wind turbines providing half of our grid power, backed up by Hydro Pumped storage  and connected accross North America instead of lead acid batteries.

Alan

Hi Alan, have you seen or read "Small is Profitable" by Lovins et al? It's an incredible book showing the myriad ways in which distributed can be superior to centralised. Economies of scale sometimes aren't.
Yes, my friend, you can indeed plug into that very same fusion reactor

Let me remind you that for the 90% of the energy I am not plugging into that fusion reactor, but to the battery charged by it. The other 10% are roughly split by what you say and nuclear. Which leads me to what happens when this battery is dead:

I too have been cold (in fact, I just had to put another log on the fire)

You obviously are a child of the modern age and I can understand why you don't know what you are talking about. Let me give you some definitions:
Cold = you switch on your heater and there is nobody there. You are currently in the unlucky stage of the the rationing regime or more likely your utility cut you off because you could not pay for it. Tha fact it is minus 10 outside of course is irrelevant.
Hungry = you can not go the store and buy food because you are out of money, or because the food today is twice as expensive as yesterday and your budget is over again.
Is it more clear now?

What is it about grandiose, centralized, silver techno-bullets that so entrance people?

Like it or not it is the centralized and grandiouse that keeps your standart of living so high. Some people call it industrial civilisation and in its fundamental lie specialisation and economies of scale. The bad things that come from it will not be alleviated by dismantling it altogether, just like the fall of the Roman Empire did not make everybody better off. Now read my lips: "No more revolutions" :)

OK all, time to stop throwing bricks at each other.  I suspect that all these nations are investing in fusion not to really make power (although that would be nice), but to develop military application spin-offs.  Like really powerful lasers to shoot down missiles.  Just about the entire fusion problem revolves around powerful lasers that compress fuel pellets to start the fusion reaction.  Lasers that powerful can be used for lots of things military.  I would rather spend the money on more wind and solar.
OT, but actually the fall of the Roman Empire did make everyone better off ... that's why it fell, because people were better off no longer making the investments in complexity that the Empire demanded to keep it going. This fits with what Tainter says, and it is borne out by historians.

At the risk of annoying people, I am going to point this out every time I see someone draw some 'fall of Rome' analogy with our current predicament. Rome didn't collapse from an energy crisis, and ordinary people were not adversely affected by its passing - all the centuries of pro-Roman propaganda we have been swallowing to the contrary.

Please, everyone: get over Rome. Our common misconceptions of Rome obscure our situation rather than enlighten it.

What is "good" or "bad" is an interesting topic. From historical point of view the fall of the Roman Empire was probably just "necessary".

The problem with the Roman Empire was not that it fell, but the way it fell. I'm pretty sure that for the medieval peasants that had to live through the dark ages it was not a great time at all. An astonishing amount of human knowledge was lost and had to be rediscovered far after that, during the Renaisance. Maybe it is my personal opinion only but for me the humanity lost some 1000 years of time, because the Roman Empire was unable to reform to match its time. Now whether we will succeed or not to do it is the question of the day. Or to spin it the other way around - how are we going to do it is the question: the good way (peacefully and evolutionary) or the bad way (wars, destruction etc.). I think the jury is still out, and the jury is us. We are also the ones to be judged and probably we are going to be the victums too.

No, this isn't right. People didn't lose an immense amount of knowledge; in terms of technical knowledge, they lost nothing. And in terms of quality of life for most people, i.e. the peasants, nothing got any worse - indeed, life sometimes got easier with the disappearance of the Empire and its extortionate taxes. What was lost was the literature and philosophy (most of that worthless) which belonged to the upper classes.

That's why I say Rome is no analog for our current predicament.

The knowledge on how to make concrete was lost for about a thousands years, useful only to upper classes of course,

Independent farmers were lost into serfdom.  The ruule of law was lost for a long time.

I couold go on.

The Fall (or perhaps the way the Roman empire fell)  WAS a tradegy !

I disagree with your hypothesis.

Best Hopes for better this time,

Alan

Alan, it isn't my hypothesis. Please consider the prejudices you have inherited in this question, as have most of us.

First though, I must correct you about a very important point, namely enserfment. This was not invented by post-Roman society, but by the Romans themselves during the Empire, and eventually became nearly universal in Roman territory. Indeed, virtually the entire agricultural population of the empire - that is, almost everybody, because almost everyone was a peasant - was enserfed under Diocletian. This appalling development took place during the empire, not after it fell.

As for technology, here is the historian G.M.E. de Ste. Croix, initially quoting another historian (Gordon Childe) but then adding his own observations on the subject:

"`... the cultural capital accumulated by the civilizations of late antiquity was no more annihilated by the collapse of the Roman empire than smaller accumulations had been in the lesser catastrophes that interrupted and terminated the Bronze Age. Of course, as then, many refinements... were swept away. But for the most part these had been designed for, and enjoyed by, only a small and narrow class. Most achievements that had proved themselves biologically to be progressive and had become firmly established on a genuinely popular footing by the participation of wider classes were conserved... So in the Eastern Mediterranean, city life, with all its implications, still continued. Most craft were still plied with all the technical skill and equipment evolved in Classical and Hellenistic times.'

Here I agree with Childe. The material arts are never the exclusive preserve of a governing class. When a civilization collapses, the governing class often disintegrates, and its culture (its literature and art and so forth) often comes to a full stop; and the society which succeeds has to make a full start. This is not true of the material arts and crafts: luxury trades of course may disappear, and particular techniques may die out as the demand for them ceases, but in the main the technological heritage is transmitted more or less intact to succeeding generations. This has been the experience of the last five thousand years and more in the Far Eastern, Near Eastern, Mediterranean and Western societies. Each society can normally begin in may material respects where its predecessor left off.'

And:

`The `economic decline' of the Roman empire was essentially a deterioration in the economic organisation of the empire rather than in its techniques, which deteriorated little, except in  so far as the lack of any widespread effective demand for certain luxury goods and services eventually dried up their supply.'

And again, this time quoting the American historian Lynne White:

`There is no proof that any important skills of the Graeco-Roman world were lost during the Dark Ages even in the unenlightened West, much less in the flourishing Byzantine and Saracenic Orient.'

You might all want to remember also the origins of the term `Dark Ages': made up by a bunch of Renaissance Latin scholars who were essentially condemning  what they considered the barbarous Latin prose style of their Medieval predecessors. Yes, much of our distorted view comes from some people making snotty complaints about grammar. As if people of 500 years hence were to label your current US society on the basis of William Safire's complaints about language.

I hope the pieces I have gone to the effort of quoting demonstrate to all of you that the opinions I have expressed here are not unsupported. Indeed, it is your own positions that rest on baseless stereotypes and prejudices, some of which go back many centuries. The discipline of Ancient History itself is replete with these, because virtually all our literary materials come from the upper classes, and most historians simply accept the biases expressed by the authors.

Anyone who wants to read a real eye-opener about this stuff should consult 'The Class Struggle in the Ancient Greek World' by de Ste. Croix, from which I have quoted above.

Forgive me if I post this on a later Drumbeat as well - I doubt you will see it here.

Regards,

People didn't lose an immense amount of knowledge; in terms of technical knowledge, they lost nothing. And in terms of quality of life for most people, i.e. the peasants, nothing got any worse - indeed, life sometimes got easier with the disappearance of the Empire and its extortionate taxes.

While I prefer not to make value judgements as to whether a lifestyle is "better" or "worse", I think you are rather wide of the mark calling the fall of the Rome a universally good thing. A spectactular population crash suggests widespread hardship and suffering.

On the "technical knowledge" side, Romans built underground sewers in London which fell into disuse, and citizens endured sewage in the street until 1000 years later. Almost any technology, even farming, requires support from a well organized society. Without support, the technology can not be applied. Advanced society really depends on a social stable organisation, rather than technology, but its the tehnology that catches the headlines.

(A case in point is Zimbabwe. By displacing the white farmers and giving the land to government cronies, their agricultural output has plummeted.)

It's true that the post-Empire peasants no longer had to pay punitive taxes, but they also lost many advantages, not least military protection etc, but also an Empire that brought in a lot of its food from abroad (e.g. Africa), and gave bread handouts to the unemployed.

Far from simply shedding a useless tier of society, life after the fall would have been extraordinarily bad for the majority of people. Probably the only people who experienced  immediate advantage would be those in distant provinces on the borders of empire, who got little benefits from Rome but were subjgated to its authority.

Over-complexity appears to be what ultimately causes the downfall of civilisations. In a simple sense, when you reach a peak the only way is down. We do not know if we have reached our peak yet. While we have excellent technological capabilities, we also have very complex societies which are highly dependant on stable organisation.

Perhaps the main advantage we have over the Romans is that we have the example of the Roman Empire to inform, and warn us.

The point you are missing it that life under the empire was already extraordinarily bad for almost everybody: that is, for the peasantry, which made up over 99 percent of the population. Those people were excluded entirely from the benefits of Roman civilization, but they paid all of its costs via extortionate taxes exacted via corporal punishment. They didn't go to the baths, they didn't go to the games, they didn't use the roads (they were enserfed and weren't supposed to go anywhere - the roads were for the army). The empire did not `protect' them, except in our modern Mafia-Don sense, and they could get that from the barbarians as well - often at lower rates. (Many inhabitants of the empire `went over' to live among the barbarians because it was preferable to living under the empire.)

No sewers in London anymore? Whoop. There were no sewers in the villages after the fall, but then there never had been any in the first place. The city is entirely aberrant. City life in the ancient world is not even slightly representative of how most people lived. That's why I say the collapse of the empire made no difference to most people. That is, nearly everyone.

On reflection, this is the central problem in this argument. Everyone keeps thinking life in the Roman empire was the same as life in Rome - and for someone like Cicero at that. It was not. Almost everyone lived in the country. Almost everyone was a peasant.

What you say about distributing bread applies only to the urban plebs in the larger cities. Think: where did that bread come from in the first place? Peasants grew it. Those people were not better off seeing their grain go to urban areas. And the urban plebs has its origin in being dispossessed of land by wealthier Romans earlier on. That was part of the dynamic of imperial growth. They too would have been better off without that happening.

Oh yeah, Alan mentioned `rule of law' above too - that is ridiculous. The Romans had a great private law system, but they had zero constitutional law and criminal procedure was barbaric. It was a rule of procedure that a wealthy person's testimony counted for more than a poor person's, even in civil suits. There is an attestation of a doctor being so disgusted with the corruption in a lawsuit he had become embroiled in that he left to live under the Huns, because they had a better sense of fair play! Yes - the Huns!

Rome shows us nothing about our predicament, because it is only about the top level of administration collapsing and trade in luxury goods drying up. It's not even remotely analogous to any situation we face. We would certainly be better off if it were, but it isn't. A better analogy is the Maya. Those people really did suffer - not because they screwed up their tax and rent systems, but because their agriculture failed them.

Rome tells us nothing about ourselves now - except for our willingness to believe imperial propaganda fifteen hundred years after it stopped being current. Bob is right: humans are dumber than yeast after all.

And of course you can't plug your electric heater into any man-made fusion reactor either. And, given the technical obstacles and cost, you don't really have any rational basis to believe you ever will be able to.

You might like to tell us exactly how much net electricity has been produced in sustained controlled fusion reactions, how long those reactions have lasted, and how much it cost. It is ridiculous to complain about the intermittency of sun and wind when controlled fusion reactions so far have lasted on the order of minute fractions of a second.

For what it is worth, I agree with you that we should give more resources and support to fusion research (all avenues). This is simply because we have to explore all our options carefully. But your faith (and it is that) that our salvation necessarily relies on nuclear power (and now fusion power, which we can't even control yet) is truly alarming.