I don't know if it's a bubble, because nothing depends on the valuation of Airbnb / Uber. It's more like a Ponzi Scheme where investors put money in to establis

I don't know if it's a bubble, because nothing depends on the valuation of Airbnb / Uber. It's more like a Ponzi Scheme where investors put money in to establish value, then make the company well known enough to pawn it off to public shareholders before it tanks.