I wasn't talking alien life though ... but home grown species who may have once achieved intelligence.
Indeed. Like we achieved ordered societies that were wiped out by global catastrophe resulting in flood myths, ice age, etc. I think people definitely built the pyramids. Like human life is still to this day very cheap to some and you just throw enough bodies at something and there ya go. Kinda like how the Russian offensives were absolute meat grinders for them throughout ww2. Throw enough bodies at a problem...
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