[thegrimmest]

Why should we imagine this world? We have no reason to believe it can exist. People are basically chimps, but just past a tipping point or two that enable civilization.

We'd also have to agree on what "behave morally" means, and this is impossible even at the most basic level.

[hoseja]

Usually "behave morally" means "behave in a way the system ruling over you deems best to indoctrinate into you so you perpetuate it". No, seriously, that's all there is to morality once you invent agriculture.