Theoretical, Experimental, Simulation, and.... end of story? I know that this question cannot be answered with any absolute authority, but I'd still like to hear some speculation. Can there be a next frontier in the tools of science? Previously, we had experiments and theory. Later, simulation was created with the advent of the computer. In analogy, we thought land, sea, and space was all that exists (heavens notwithstanding). Now, the possibility of alternate dimensions exist. I don't think it would of been impossible for someone in the pre-computer age to envision what a computer simulation does. In that light, what could possibly follow simulation? It really feels like the end of the road.