The Boring Company – Elon Musk's Next Project's Vision for Future Cities (opens in new tab)

It lets you build a single Lane tunnel that still goes fast. It lets cars go over the speed limit. It means no need to ventilate the tunnels since the engines can be off. And finally it won't affect your EVs range.

It's brilliant!

your existing car now becomes your luggage that gets transported with you on your trip to be used at your destination.

As reusable rockets were impossible... I don't think it would be easy, but completely doable and one way to go to reduce problems in big cities, especially the capsule-esque bus... Both public and private transport with the same network, it can be good! Especially if combined with autonomous drive from/to the spot and tunnels' lifts.

I would definitely be glad to work on a project like this!

It's no joke. The pit for a TBM in the SpaceX parking lot is real.

Whether it will be successful is another question.