Earlier quoted context omitted.
> We could perhaps 3 or 4 decades ago have made a collective decision to gradually reduce consumption and allow our home to survive in decent enough shape to sustain us. One thing we know about humans is that, as a species, we were never and are not currently capable of making such collective decisions or otherwise coordinating at this scale. This is probably the root of most problems we have, except death and diseas…
> One thing we know about humans is that, as a species, we were never and are not currently capable of making such collective decisions I'm pretty sceptical re claims of knowledge about complex systems, and human ecology is about as complex as systems get. So I think your statement is way overconfident. Having said that, if I had to make a bet on whether or not we'll make the necessary decisions given how late in the…
Complex behaviour of systems often arises out of simple rules. Game theory is not always well applicable, but here it provides some simple models that explain this problem very well: multiple people forgoing individual gains in order to cooperate at getting bigger gains is a very unstable state that can be quickly destroyed by free-riders, who defect in order to reap both individual and group gains. The very awareness of this dynamic, which is something we all have as intuition even if we can't put it in "mathy" words, is enough to severely curtail the ability to cooperate. Looking through this lens, you can discover that of cultural customs and social pressures around individual behavior are really mechanisms that deter and punish defection and strive to establish an environment in which cooperation is easier.
Scott Alexander explored this topic far better than I ever could: https://slatestarcodex.com/2014/07/30/meditations-on-moloch/.