You are a good poker player, played for 15 yrs, you are a good trader, trade for many years. So, you are a living proof guru's points.
You need to be "some kind" of smart to be a surgeon, rocket scientist, et al. No correlation to poker there either.
So the poker players have an edge? Gee, wonder what that edge is...(P.S. The point of this video is that meathead in the beginning looking at the player's cards with a secret camera. He was seeing the opponents' cards and clicking the numbers of the cards with his clicker, which went to a device to Harry's leg. I could not find a clip with him doing that and which also showed the actual device on Harry's leg. But basically, he cheated.) It is a great movie, by the way, highly recommended.