[rtempaccount1]

I'd say it's partly VCs but also the fact that, once they stop growing quickly, they need to start turning a profit, to justify a big valuation.

As long as they're still growing they can blame any losses on the costs of expansion. The hard part is becoming profitable once that growth period is over.

My feeling is that Uber, Lyft and WeWork will really struggle to turn big profits, there's just not enough differentiator to allow them to charge higher prices than other market participants.

with Uber/Lyft the endgame appears to have been self-driving vehicles, but it seems those are a long way off mass market adoption, so it's not likely they can sustain themselves while waiting for that to occur.

I'm not sure what WeWork thought the long term deal was...