I posted this in response to a comment below, but I think this interview clip provides a great overview of the technology that Musk is proposing, as well as ans

I posted this in response to a comment below, but I think this interview clip provides a great overview of the technology that Musk is proposing, as well as answers to some common questions/concerns about the challenges this tunneling might create. https://youtu.be/hpDHwfXbpfg?t=1m17s https://youtu.be/hpDHwfXbpfg?t=1m17s edit: added the word "interview"