If 10 normal, able-bodied people shipwrecked in a desolate, uninhabited area - and formed their own 'clan' in which they bonded together to survive; how do you suppose it would go? Each member of the clan would likely have some unique skill or responsibility which could contribute to the greater good/survival of the 10. For example, 2 might be hunters, 2 might be cooks, 1 might sew/mend clothing, 1 might be a medical/nurse, 1 might fish, 1 might build fires, etc. But what would happen if 2 of the 10 just slept and told jokes all day while the others were out working/hunting/fishing? How long do you think they would last/survive in the clan? And do you think the rest of the clan would allow them to reproduce and not offer anything to the rest of the clan for generations, but continue to eat that which the hunters kill and sleep under the shelter that is built by others in the clan? This is not rhetorical; I would like to know if people on this board would support that 20% of the clan that chooses to do nothing in the survival scenario such as I've described above.