Speaking as somebody who worked at an ISP during the .com bubble this guy is really, really wrong on the causes of the .com bubble bursting

Dark fiber was a result of the .com bubble, not a cause. telcos built out fiber expecting demand that … never came, and on the last mile end, by the time the .com bubble was in full swing, fewer and fewer people were using modems and house phone lines to connect to the internet, the last-mile problem had been solved by technologies like aDSL (which ran over the same copper wires the phone signal ran on, and still powers a good chunk of last-mile transmission to this day), and Cable, which had more than enough bandwidth to deal with the last mile. In fact, it’s arguable that these technologies caused the bubble and the dark fiber.

The cause of the .com bubble bursting was that the demand for all of these online services that people were going to use just took longer to show up than the stock market had patience for.

The arguments he makes are in the first 5 minutes of the video. The rest of it I didn’t watch. By the way, he also claims that AI is totally not a bubble…