I recall in the 90s people saying with a straight face things like "it's about eyeballs, not profits." Sure, eventually companies like Google were able to turn

I recall in the 90s people saying with a straight face things like "it's about eyeballs, not profits." Sure, eventually companies like Google were able to turn the eyeballs into profits by way of advertising, but most of the 90s web ventures failed to turn their eyeballs into sustainable revenue. Now no one doubts you can sell stuff on the web, services on the web, ads on the web. Now what we doubt is the companies like Uber and WeWork that want to 'disrupt' old businesses like car rental office rental. They've done so, but mainly by pricing themselves below cost. (leaving aside the, uh, quirks of management) And there's no sign that they can either raise prices significantly or come up with other more profitable revenue streams.