None of the six companies he mentions (Uber, Palantir, Airbnb, Dropbox, Pinterest, and SpaceX) are publicly traded. So, one reading of the tea leaves is that s

None of the six companies he mentions (Uber, Palantir, Airbnb, Dropbox, Pinterest, and SpaceX) are publicly traded. So, one reading of the tea leaves is that something like 100B (of non-existent money) is locked up out of the hands of the people who could benefit from trading it. This, at a time when wealth disparity is not far from the Gilded Age. There's a bubble, all right--just probably not the one the author is thinking of.