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Background Physics, Chemistry, Geology, and Material Science, among other fields, all can include the study of Percolation Theory. Put simply, percolation concerns the movement and filtering of fluids through porous materials. (Thank you, Wikipedia.) Other applications of percolation modeling can examine movement of electricity or fire, but the idea is the same Given a grid consisting of open squares and closed squares, (think of the game "Minesweeper".) a simple percolation model checks whether there is a path through the open squares from the top of the grid to the bottom, without passing through closed squares or moving diagonally. To make things more interesting, the selection of which blocks are closed is typically generated using some random probability distribution. This technique belongs to a much larger class of computational algorithms called Monte Carlo methods, widely used to simulate complex physical and mathematical systems that cannot otherwise be well understood