Every one seems to be arguing about the guys credentials.
Nobody is refruting the claim that bitcoin is a get rich ponzi scheme.
1) It is not a Ponzi scheme. Period.
"A Ponzi scheme is an investment fraud that pays existing investors with funds collected from new investors. Ponzi schemes are named after Charles Ponzi. In the 1920s, Ponzi promised investors a 50% return within a few months for what he claimed was an investment in international mail coupons."
2) The market price determines the value of Bitcoin and ETH which is controled by the demand of buyers or the fear of sellers.
3) There is no reason that we could not see the price go back up to previous highs in a year from now even if it were to fall another 50% from now. As long as you don't trade on margin, you should be able to handle the wild swings. The point of being an "Elite Trader" is to have an edge that allows you to trade profitably.