I wouldn't give that much worship to Galloway it's not like he is always right or my guess even close to that (and nobody is). For example this post circa 2017 about the bubble. I can't tell you how many people have not called the bubble since the last bubble correctly. Galloway is one of them:

https://www.profgalloway.com/every-seven-years

Market was at 21,600 (very roughly) on the approx. date of that post and now is at close to 27,000. It did not go lower than 22,400 in the interim.

To wit (that post):

> There are several hard metrics for why we may be nearing full-monty bubble, including things my NYU colleagues spend a great deal of time thinking about, and understand much better. But you don't need a Nobel to see the similarities between 1999 and 2017. (Btw, NYU Stern has three active Nobel Prize winners… We. Rule. But that's another post.)

Very generally if you are predicting a collapse ala 1999 you need to be a bit more accurate than that.

I didn't do a great deal of work to find that post either, it was linked in the post you gave.

Edit: Also love his being so proud of the anointed 3 active nobel prize winners. Would like to remind everyone that until recently the game in business was making money or a great product or being loved by your customers not winning academic awards and platitudes.