It looks like his results are taken from the Federal Reserve 2022 Survey of Consumer Sentiments. https://www.federalreserve.gov/econres/scfindex.htm The data is publicly available. I don't think that this was hallucinated.

Yes, he seems to be using that dataset.

Can you tell me how the table of numbers was generated? All it says is that it was "calculated" by ChatGPT. This guy is an econ professor; where's his reproducible methodology?

Further, he's treating this 2022 snapshot as a timeseries as if the various categories are tracking the same people over time. Just because 80 year olds in the data are wealthier than the younger brackets doesn't mean that those are the same people (in fact, those 80 year olds are boomers who grew up during a time of unprecedented financial growth and stability in the US, and who currently own a massive amount of housing in the US and are refusing to retire and allow younger people to take their high-paying jobs).

I can continue but those are the most egregious issues to begin with and I'm tired of reading this slop.