Food is a good example nowadays. Yes, people overeat for various reasons, but if you look at overeating due to greed, then some people do it because they like the food, and so eat more. They enjoy the food, so they eat more. Where is the emotion in that?
Ugh, sometimes I wish English had more distinctions between things. Greed is a feeling, perhaps, but not an emotion in the sense that itís related to feeling functions.
Or maybe Iím wrong. Suggesting that itís related to F, though, would imply that people who prefer feeling would have more moments of greediness than others (regardless of whether they act upon them). And I think thatís BS.
Disregarding that whole Ďpreference for thinkingí part though, you present a very interesting question: How are people going to make it through the next few hundred years? My guess would be not very well. I think you could construct and perfect solutions for years, but they simply will not be practical in any sort of large-scale implementation.
Iím not sure this is one of the problems you can fix by simply patching it up with duct tape. This is more the kind of problem where you have to chuck out half of what you have and start again.
As it is, the world already has too many people if youíre looking at it from a purely sustainable aspect. The only way that people are going to be sustainable on a large scale is if there are less people.
So I canít solve that one. I donít think anyone can.