CP: I think your options are too extreme.  There are ways to have a "soft landing."  (Although if you can't imagine life without shopping in a mall, that might feel like  "unimaginable horror.")  A soft landing, however, will require some careful planning.  The longer we go without facing reality, the worse it will be.
And we are choosing not to face reality right now. I would say teh potential for a "soft" landing flew out the window sometime in the 1970s/80s for everyone on the earth. I think its falling away very fast (if not lost already) for those of us in America. (see ecological damage, overpopulation, drawdown of valuable metals (like iron ore near the surface))
I said, "IF we actually need to reduce population." There are scenarios in which we don't. Those are soft-landing scenarios.

What I'm objecting to is the assumption that lower population will somehow only mean killing off the existing surplus population. If we get into a dieoff or collapse scenario in Western nations, birth rates will go way up.

It's not that soft landing scenarios don't exist. It's just that they are incompatible with steep population declines.

The only known ways to get population declines are:

  1. Massive oppression (and even that doesn't really work; see China)
  2. Western standard of living (slow, and requires significant energy)
  3. Massive tragedy

Note that Western living doesn't mean U.S.  Europe uses half our energy, and has sub-replacement birthrate. And as computers get more efficient, we'll be able to have at least some aspects of Western culture (entertainment, data-processing, communications) even in extreme oil-scarcity scenarios. Already, iPods and cell phones cost about the same as a tank of gas for a Hummer.

As to depletion of valuable metals: Non-metallic materials can fill that gap to some extent. I was just at a robot trade show, and some of the biggest industrial robots now have major structural parts made out of carbon fiber.

Chris

I guess what I mean by "soft landing" is one in which population declines by means other than starvation, etc.  Mostly it means poeple choosing to have fewer children.
Pardon me for saying this but,  where are you going to get carbon fiber if you don't have high tech tools to make it?

Post Oil, think stone ground corn meal, or wheat, think "Today I have to make my tools with wood, instead of Oil Based materials!"

If we have a soft landing, it only means that "some" of our skills will be intact, not all of them.  How many of you in five years after the collapse of the world around you, can make a loaf of bread.  What plants in the wild can you eat, if its not in the grocery section at Wally World?  

You folks seem to think that this is a problem that can be solved.  Take away 10% of the world oil production and sure its easy,  Take away 30% or 50% and your next meal might depend on what you know to eat out of your front lawn.

If you have a front lawn.

If we had to maintain 1950's industry with 1990's transportation, we'd indeed be in deep doo-doo with scarcer oil.

But instead, we have to maintain some of 1990's industry (the less luxurious parts) with far less transportation than we use today.

People are saying we'll have to give up our iPods. Well, why? They cost very little to make; much of their cost is intellectual property and "luxury tax" from Apple. At the rate computer technology is developing, they'll be "old tech" in just a few years, and you will be able to buy today's iPods for less than a few gallons of gas.

Our entire industrial base takes far less oil than our transportation does. If we had halfway sensible re-allocation, I think we could keep necessities and even some luxuries going with half the oil.

The risk is that the re-allocation won't be sensible. If it's communistic, it'll be destructive and inefficient. If it's capitalistic, it may leave enough people starving to cause social collapse.

Chris