Sustainability doesn't require any sort of equality across the population, but I'd like to change the culture to something that isn't an exaggerated expression of human instinct which is where we are at today.

As a non-meat eater, I find that the capacity of the land to feed several times more people in a much more sustainable manner and without the chemicals now used, to be the most significant argument against there even being a real population or resource problem...but then, I bet you see different nails and have different hammers

Efficiency cannot be greater than 100% which means there is a hard limit on our population. We could probably string out 20 billion humans on a diet of 900 calories of rice and vegetables a day, but why? Shouldn't we be concerned about our collective quality of life?

you are the media you consume.