The evidence offered is that the economy is doing well, people are traveling, and there is some technological innovation happening. As though that were unique. He then dismisses certain other, less convenient evidence, like consumer sentiment, and simply doesn't bring up any other changes in the macroeconomic climate over the last 100 years. I would like to know what about the balance of evidence is unique enough to draw an equivalence between the 2020s and the 1920s. Otherwise, this sounds a little like a kind of numerology where similarly numbered years must resemble each other.