I think late-night CalTrain (or late-night BART on the peninsula) would be more useful than 24-hour BART. First, the city has buses running at night and there

I think late-night CalTrain (or late-night BART on the peninsula) would be more useful than 24-hour BART. First, the city has buses running at night and there are 8xx buses that run along BART lines after BART is closed. While one's experience on BART is much better than on a bus, current options don't require that much more time. Second, the last north-bound CalTrain leaves Palo Alto a little before 11 pm making it really difficult for people living in the city/East Bay without a car to do evening activities there. If one wants to get back, the best options are spending two hours on a SamTrans bus into the city or taking an expensive cab.