>>11464931>Took a billion years for life to appear on Earth>Took another long span of time for multicellular life to appear and crawl out of the ocean>Took yet another long period of time for humans to appear>Out of all the millions of animal species on Earth, only humans have civilization>Out of all the human societies on Earth, only an insignificant percentage developed civilization while the rest were living naturally in tribes and clansI think it's unrealistic to assume that intelligent life is common. And it's also unrealistic to assume that intelligent lifeforms would have the same ape-like instinct for conquest and domination, which is what civilization requires.
