That's true, though I don't know the Irvin you're talking about but according to what you're saying, even though he's old, he still managed to carry out trading activities in the stock market to my knowledge and it seems that he still obtained a profit from it, which we can say is a large amount at least. Am I right or wrong?

Now, maybe as long as the world doesn't end, I think the trading industry will remain and continue, it's just that individual traders themselves will not exist in this industry of trading business.