Last night I had a random thought. I'm sure it came from a poker book I read. After poking around this forum I realized it seems we tend to become a little too obsessed about our own hands, our odds, our stack, and how we are doing
right now. However, there is one thing we sometimes miss.
The opponent.
We all think about what
they might have--you have to. But how often do you
really think about what they think you have? Ok you try to fool them but are you really paying attention? Is your move at the moment consistent enough to really fool them or are you just fumbling around in the dark making random moves to trick them into doing something?
To me there are mental levels:
1. What I have
2. What they have
3. What they think I have
4. What they think I think they have
5. etc.
In chess this is thinking ahead. Good chess players have their moves all planned out in advance.
In poker you are forced at least into thinking about level 2 if you actually want to win at all. Decent players go to level 3 even if they don't realize they are. Really good players go beyond that. But how often do you consciously try to control what the opponent thinks you have? Do you ever go deeper?
Let's say you notice a habit of theirs and you know exactly what situation causes them to react in a certain way (like fold). Why not take note of exactly what it was that you were doing so that you can reproduce the situation by managing what they think you have? Why not act in a certain way to manage what they think you think they have?
My point is that it goes beyond just watching what the other players are doing. It takes active mental planning and consistent action.
I've been in games where the cards could be blank for all it mattered. If I were better I would have stayed in the game

It can be a mind game where you and your opponent both go raising and re-raising to the point that when you turn over your cards you both have garbage and you both knew it. Nobody else at the table had any idea of what was going on and had already folded the best hands. The fun part: neither you nor your opponent were bluffing.
So my questions to anyone out there are:
When is the last time you consciously and purposly controlled what your opponent thought you had without fumbling around in the dark?
How many levels deep did you go?
How many levels deep do you think you are capable of going?