lets pretend there are 1000 couples .. man and woman.. average health. put each couple on a deserted planet.. earth like planet. alone.. with no other people. leave them to do whatever. come back in 10,000 years.. and check the 1000 planets. how many will be completely deserted again? how many will have humans healthy and with big population? would genetic problems from inbreeding.. create to much a problem that they can not survive. or would the DNA some how correct these issues out?