[lliiffee]

Honest question: what if those self-driving cars have multiple people in them? With 4 people you quadruple the throughput, and this seems technically achievable with technology. Minivans and the like go further. I certainly haven't run the numbers vs rail but in most regions it seems like 4x ing the highways would meet current needs comfortably.

[cimmanom]

At which point why not just use buses and... trains?

[hnal943]

Busses and trains aren't available in my driveway when I want them.

[cimmanom]

But an autonomous vehicle with 3 strangers is?

[hnal943]

Presumably I could order up an AV and it could drive to my house when I needed it.

Why would there need to be strangers?

[mikestew]

what if those self-driving cars have multiple people in them?

You mean, say, sixty or seventy people, maybe? Let's think big! I wonder what such a vehicle might look like...