On: Tunnel Boring Machines (2018)

[bluGill]

Tunnels still need large parking lots, which deteriorates the quality of the city for everybody.

[chr1 → bluGill]

The self driving cars don't need as many parking lots, and with cheap tunnelling tech parking lots can be built underground where they want be a problem.

[bluGill → chr1]

cheap tunneling is still orders of magnitude more expensive than surface lots.

Self driving cars can skip parking lots only if we vastly more tunnels. There is only so much space in 3d.