So next year the same amount of nutrition, sunlight, water and care will product two turnips where this year we only have one. I don't think so. Maybe it's semantic - we could have qualitative change. We need it.

Growth is "more" - an increase in size, quantity or number. 2% is still a doubling in 36 years or so.

cfm in Gray, ME

So next year the same amount of nutrition, sunlight, water and care will product two turnips where this year we only have one.

No - we were discussing economic growth, not agricultural growth. The two are different.

In particular, with synthetic goods, we have more control over the production process, meaning there is more scope for improving efficiency.