> Uber estimated that it costs Waymo $2/mile to operate.

Waymo costs are immaterial right now. Their cars are not production cars, and they have spent billions on R&D that they can't even hope to recoup with the current fleet.

That being said, $2 is super-low. The IRS rate for car depreciation write-off is 71 cents per mile.

> But that's still pretty expensive to be using as a daily commuter!

The true cost of a transit ride in NYC or Seattle is around $20-$30 per ride. People don't actually pay that much because it's heavily subsidized.

Once self-driving matures, it'll also be subsidized and it will completely kill off transit. Maaaaaybe excluding subways in some areas.