That leaves too much room for subjective interpretation - like ultimately the answer as to what system of governance will last the longest in a steady state will ofc be to kill all humans (bc that lasts for infinite time, and you can't beat that kind of longevity!), while if you add the constraint that at least some must remain alive, it would be to enslave all humans (bc otherwise they'll find some way to mess everything up), and if there is something added in there about being "happy" (more or less) then it becomes The Matrix (trick them into thinking they are happy, bc they cannot handle any real responsibility).

Admittedly, watching the USA election cycle (or substitute that with most other nations lately; or most corporate decisions work just as well for this) has made me biased against human decision making:-P. Like objectively speaking, Trump proved himself to be the "better" candidate than Hillary Clinton a few years ago (empirically I mean, you know, by actually winning), then he lost to Biden, but now there's a real chance that Trump may win again, if Biden continues to forget which group he is addressing and thus makes it easy to spin the thought that he is so old as to be irrelevant himself and a vote for him is in reality one for Kamala Harris (remember, facts such as Trump's own age would only be relevant for liberals, but conservatives do not base their decisions based on such trifling matters, it's all about "gut feelings" and instincts there, so Biden is "old" while Trump is "not" - capiche?). Or in corporate politics, Reddit likewise "won" the protests.

Such experiments are going on constantly, and always have been for billions of years, and we are what came out of that:-D. Experiments with such socioeconomics have only gone on for a few thousand, but it will be interesting to see what survives.