Re:What's going on with Google robotics?
by frisco on Tuesday November 10, 2015 @10:11PM
(#10544598)
At the time, those were very questionable assets. We don't remember how close both Tesla and SpaceX came to failing. Had those not worked out, Elon really would have lost all his money.
http://dealbook.nytimes.com/2010/06/22/sorkin-elon-musk-of-p...
There are many other sources, and later interviews where he discusses this time of his life.