>>7418088Because a desire to live and propagate yourself is biologically hardwired. Your genes treat you as a vessel so they can be propagated again.
>>7418091Just become really flexible and be able to suck your own dick
>>7418093For the same reason why black people can't swim
>>7418094When you're a geriatric, yes.
>>7418101Ion drives, are good for small satellites that are already in space. They're very efficient in terms of Specific Impulse but have horrendous thrust, so you would see them on the first stage of rockets, or in spacecraft with manned crews.