He's using US stock market data for his argument. The US stock market over the last 100 years has been an obvious outlier. In that time the US grew from a small fraction of the world economy to dominating it.
If you want to make this argument, you have to use global stock market data.
Personally, I use 2% after inflation for my calculations, and consider that to be optimistic. There are lots of examples of stock markets returning less than inflation over long term periods.
If you want to make this argument, you have to use global stock market data.
Personally, I use 2% after inflation for my calculations, and consider that to be optimistic. There are lots of examples of stock markets returning less than inflation over long term periods.