In fact, I don't see anything interesting even in the game of people - now everyone knows the mathematical basis of poker, and even if they don't know it, they know the algorithms - when to raise, when to bluff, etc. Professional poker is a sad thing, I don't know who is following this and looking for some "hidden meanings and skills of the players".
It's a bit like financial services. Some of them get it right some of the time and get lots of attention. Then they get it wrong and people forget about them, until someone else gets it right a few times, etc.
It's basically how random events work. You cannot predict exactly what card will come up next, in the same way that you cannot predict exactly what shares will go up or down.
But since many people are guessing all the time, some will get it right some of the time.
Maybe these things have something in common, but I think more about mathematics. And in the first and second cases, there is no importance that someone guessed the card or the direction of price movement. The most important thing is not one-time successes, but the correct systematic actions - if you do them, then you will be in the black at a distance. This also applies to financial markets and poker games. Since the game of poker is quite simple, it is very dull to watch it.