What do you mean, "believe in psychology" or "make a mistake due to psychology"? Psychology is a field of study, not a religion or a hindrance to chessplaying.
Chess, more like science or art

The greater the proficiency, the more "science" is involved. Middlegames and endgames have technique and memorization as well.
I personally see more art than science, much of it has to do with how prevalent tempo is. To me it feels like a dance. Footwork.

I understand that chess has become very mathmatical, very analitical. But I think at the heart of it is a fourm of art. Like Tuz Sun's Book. The Art of WAR. You can be good at war or making war, but to really be great, I mean awe-inspiring, the kind of genral or leader that strikes fear and admiration from foes, you have to make it like art. Thats just my take and I guess more what I'm asking about.

IMO it's scientific...but ok, it's probably a lot of things...science, art, sport, fight, game, etc, etc.

I understand that chess has become very mathmatical, very analitical. But I think at the heart of it is a fourm of art. Like Tuz Sun's Book. The Art of WAR. You can be good at war or making war, but to really be great, I mean awe-inspiring, the kind of genral or leader that strikes fear and admiration from foes, you have to make it like art. Thats just my take and I guess more what I'm asking about.
Perhaps sadly (?) because a 19 year old can be the highest rated chess player, because top players start to decline around 35-40 years of age, and computers designed only to calculate large numbers of positions are very strong, the game is such that mastery is more akin to a science. Chess (among those with a high proficiency) has more to do with information processing than expression.

Opening and endgame are generally science. What lies between the 2 I see as art. Anything involving creativity is art

Perhaps sadly (?) because a 19 year old can be the highest rated chess player, because top players start to decline around 35-40 years of age,
yet the 19 yr old dont always get what it takes to have heart in a game. one of the guys i know would beat anyone even a cancer patient thats dying if chess is also a sport doesnt it take heart to know how to be a good player?
I asked GM Alex Yermolinsky at the Chessnuts open tourny, what he thought and he said more like science, but can see some art. I like the study of it myself but love the games that look like art, like where one plaer has given most everything away and still wins. but not just by luck.