Therian

Hi there, I have a question i want to ask you.

Is it possible to create a game where you can do EVERYTHING you want? I mean having interaction with everything and everyone in the game?

My theory is defining "reality" to a computer and making it work on "logic" of that reality. (I don't really know how to explain it in better way, sorry guys.)
For example; if you kick a wooden wall and your strength is good enough to break it, then logically the computer will show you breaking the wall, but if it is made from steel and its thick and you still kick it - hard - then logically you will break your leg, and this is what will also happen in the game. Now, do you think that it is possible to define reality as a whole for a computer to understand it?
Won't it be nice to have a free will in a game?
Tell me what you think.