I was a runner on the Chicago Merc Exchange & CBOE in 2007
Back then, everyone told me to read a dense options pricing book that THEY THEMSELVES admitted they didn’t fully understand
Obviously the book they had recommended to me (and by proxy their own methods) had failed them, and this led me to heavily discount the wisdom of all trading disciplines
I’m not saying there aren’t idiots who trade like this but there are clearly very wise people that trade systematically as well.
Their system is complete & internally rational w/ all components relying in subtle ways on other components
The Turtles are coherent systems thinkers, and that’s to be admired.