https://www.wsj.com/articles/elon-musk-boring-company-tunnel-traffic-11669658396

Musk comes from move fast and break things mentality. He wants to throw engineers and money at the problem and any regulated industry is out of reach sanz space thanks to lack of alternatives. I bet boring company is a front for space mining and not a serious earth company. His health venture is already lapped for clinical studies and doubt will go anywhere if he has a say.