Eh, to the extent that they can be driver less or otherwise on demand, they complement public transit. I have been using the train a lot more after uber starte

Eh, to the extent that they can be driver less or otherwise on demand, they complement public transit. I have been using the train a lot more after uber started to provide reliable taxi service. It gets me to the far away stop, and provides me a backup if I miss the train. Uber is only really a car replacer for me because my ride is subsidized in a unsustainable way. If self driving cars make taxis sustainable at uber pool with weekly discount rates, or even uber pool rates, that makes the sparse public transit we have way more practical