Meep wrote:Living on other planets is a pretty bad idea. Human physiology is evolved to exist in the very specific conditions found on Earth. If you did want to colonise the rest of the solar system I would prefer to live on an orbital habitat as at least it could be spun to precisely one g and have an artificial day cycle that corresponds to 24 hours.
I can imagine a time in the future where genetic modification will be commonplace for anyone born in non-earth environments, things like bone density and muscle mass could be tailored to suit.
I know we currently find the idea of 'designer babies' morally repulsive but there probably will be a need for it at some point to ensure humanities survival.