Top network posts
- 24 Could human civilization live 150 years in a nuclear-powered aircraft carrier colony without resorting to mass killing/ cannibalism?
- 19 How large would a mega structure have to be to host 1 billion people indefinitely?
- 10 How would 10 generations of living underground change the human body?
- 8 What is the maximum size of a tribe living off of one whale per year?
- 7 Is a self contained air-bullet cartridge feasible?
- 7 How can religions without a hell discourage evil-doing?
- 5 What non-primate animals have similar blood to humans?
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