Elon Musk's Mars Vision

Fascinating ideas from Elon Musk who wants to start a human colony on Mars. He thinks to make it self sustaining could take up to 100 years. He thinks big, though.  The spacecraft he's planning to use could carry 100 people or more.

It's believed the first flight to Mars could take place in 2022.  That leaves me out as I might be dead by then, but I wouldn't likely go even if I could. Seems kinda scary and there's a lot of questions I have that are unanswered. 

Neat stuff, though. I hope I'm alive to watch it on TV.