> Musk knows nothing, he put someone in charge who knows nothing, the reporter knows nothing, and the commenters here even admit they are completely guessing and know nothing about boring/tunnels.

Musk didn't know much about rockets, electric cars and batteries but still managed to found and run the first private rocketry company, the first mass-market electric car and is responsible for the creation of the world's biggest battery factory. Not to mention Hyperloop, but there's no real product yet.

What Musk touches that eventually becomes gold, I believe - especially because his name and fame attracts talent that is willing to work extremely intense for his goals.