I think it's not quite that simple. In the end run up to a bubble, there's a lot of money floating on big bets. Some of them are going to pay off. Most won't. Maybe Uber will. Maybe it won't. They say future value is priced into a stock, and this is where margin for error is the highest.

I think smart money in Uber recognizes their position as a gamble.

Regularly you hear about hundreds of millions being poured into companies like Uber and self driving tech companies. At least one of those companies is going to win big, and investors don't want to miss out.