Comment by insane_dreamer

> It’s why Communism is a great idea but fails miserably every time it’s implemented

I think it unfortunately only works on a small scale where humans have a reason to care about each other, where they personally benefit from "sticking together" or the risks of not doing so are high. I.e., a village or small tribe (Native Americans were essentially communists), the crew of the Enterprise, a kibbutz or small colony, etc. Once you scale it up, people just don't care enough about the millions of others to be willing to do anything other than looking out for themselves.