4 ms·

Pretty cool how Musk's companies reuse technologies amongst themselves. Back in 2015, SpaceX shared welding techniques and machinery with Tesla: https://electr

• Boothroid 9y ago
  Perhaps strap a rocket to the back of the boring machine?
• dx034 9y ago
  Don't all companies do that? GE will also share basic techniques between departments. And if you don't have another department to get the knowledge you contract other companies. There's no need to invent everything yourself. To me the whole thing sounds more like a marketing stunt. Tunneling is extremely expensive. Musk knows how to make products more efficient but the improvement needed in this case is probably far more than what he achieved with Tesla.