Why do we sleep?

[vinnie83]

Simpo Two said:

Ah yes, I see. As long as there is selection there will be evolution. However now that we are all 'civilised' (as opposed to clubbing each other to death with dinosuar bones), the selection forces are different. For example, if you pay chavs to breed, the proportion of chavs in the population will rise. This was not foreseen by the idealists in 1945.

Do you mind if I ask how you came to know of the relation to Darwin, and how you are related? That's fascinating! Any interesting story behind it all?