I share your theory. I think Uber was dominant and in a great position financially until it tried to aggressively continue it's expansion into immature markets

I share your theory. I think Uber was dominant and in a great position financially until it tried to aggressively continue it's expansion into immature markets using subsidies. Their fixed costs have exploded while revenue hasn't grown as quickly. There's no reason this technology can't/wont work from a science perspective. From an engineering, consumer, political standpoint this concept is such a non-starter. The more money Uber spends on this the quicker they'll bleed-out.