So I'm especially glad to see the current crash, as for me it represents businesses founded on "fuck around" finally finding out what business fundamentals are.
I'll be interested to see what happens with other massive capital consumers from this era, with the poster child being Uber. It's plausible to me that even on its own terms Uber will never generate profit above the $20 billion of capital it took. Let alone getting into the black once we count its more obvious externalities.