A lot of the history of transit-disrupting startups in the SF Bay Area can be attributed to how truly bad public transit in the SF Bay Area is. I understood Uber a lot more after trying to hail a taxi in SF. (Same with Boring Company and LA traffic.)
A real disruptive solution for humanity - but a hard one to monetize - would be to figure out why cities with good public transit / shared transit infrastructure managed to build them (off the top of my head, Tokyo, NYC-of-the-past, parts of China, Chicago, etc.) and figure out how to replicate it elsewhere.
A real disruptive solution for humanity - but a hard one to monetize - would be to figure out why cities with good public transit / shared transit infrastructure managed to build them (off the top of my head, Tokyo, NYC-of-the-past, parts of China, Chicago, etc.) and figure out how to replicate it elsewhere.