In his career as a trader, he noted that all the non-suckers (I.e. One of the main themes of his books is the sucker/non-sucker distinction – basically in life you need to avoid being the sucker at all costs. If you’ve read my article on the 6 Best Poker Books in 2019, you’ll know that I’m a big fan of the ideas of Nassim Nicolas Taleb (of ‘The Black Swan’ fame) and his no-nonsense ideas about probability and risk taking.