Would erasing all the books really erase history? Especially with the digital books that exist now? And even if you did manage to destroy history, people would still find a reason to fight each other. Some rifts run deep...where it's past the history written in books, and it's etched into the culture and layered… » 4/15/14 11:01am Tuesday 11:01am

This reminds me of the link between odor preference and the immune system(specifically HLA diversity). Basically, you are more attracted to people whose immune systems are more genetically different than yours. This is evolutionary advantageous, since your offspring would have a more diverse immune system. » 4/15/14 10:34am Tuesday 10:34am