>>It is pretty amazing how complicated our bodies are, but I think the expiration date is there to prevent overpopulation - if our ancestors didn't die, the pla

>>It is pretty amazing how complicated our bodies are, but I think the expiration date is there to prevent overpopulation - if our ancestors didn't die, the planet would be overpopulated That is an argument based on group evolution, largely disproved (some unusual edge cases might exist). I'd recommend reading "The Selfish Gene", it is an incredibly fun journey in beautiful English (Disclaimer: I'm a non-native English speaker.) It will probably change your world view.