I believe that in 10 years time we will have breathtaking graphics that will be able to simulate reality to a stunning degree.
However my personal opinion is that we will never truly simulate reality. I believe that such a goal is unaproachable.
According to me the graphical improvement of the game is truly next to the truth. But, for now, the necessary resources exceed existing requirement hardware. However it not excluded that a few years is enough to catching up this goal