I don't understand this comment. In blackjack you play against the dealer. Dealer plays a fixed strategy. Your cards are dealt face up. Showing or not showing e

I don't understand this comment. In blackjack you play against the dealer. Dealer plays a fixed strategy. Your cards are dealt face up. Showing or not showing emotion doesn't enter into it. In poker, on the other hand, being able to read other players, and not being read in return, is useful.