> Boring Company has actually built tunnels and passengers are actually riding it. No one else is even trying.

Boring Company bought an existing tunnel boring machine (TBM), and used it to dig a car tunnel. Their only “innovation” in terms of any cost savings is to dig smaller tunnels - which we already knew could be done (tunnel cost grows with diameter), and which we don’t do for good reasons (capacity, emergency egress).

The branding and marketing exercise was excellent though.