You may be right but then I saw he is selling a trend-following system that allegedly adapts to market conditions.
None of them do, they cannot make money trading (some have never even tried but most have failed)... That is why they sell the systems
The whole premise of selling a system is totally stupid. If it actually objectively worked for a statistically significant period there are tons of private money people who will beg for just a signal feed...no need to sell anything. Of course you can sell any system to Trumpites as they are so, so stupid.