Why do so many people choose to be insensitive happy ignorants?

Wandering through the bitfields, I just came across this 1995 photograph of Michael Gernhardt floating 200-miles over the Earth on a six-hour spacewalk. I zoomed in and looked in awe for a couple of minutes, pondering the chain of events, the Herculean effort that put and kept this man alive in space. » 7/31/14 8:21pm Yesterday 8:21pm