This is good stuff. Watch all 4 parts, Q&A is the most interesting. I like how Musk is same time a crazy visionary (his BIG vision: multiplanetary human civiliz

This is good stuff. Watch all 4 parts, Q&A is the most interesting. I like how Musk is same time a crazy visionary (his BIG vision: multiplanetary human civilization, what's yours?) and have very practical approach how to proceed toward the big vision.