This is an experimental 3-dimensional cellular automaton akin to J.H.Conway's "Game of Life".
You are positioned inside a 3D grid, the vertices of which are the cells of the automaton. You can explore the grid by means of buttons shown below it. If you have a keyboard you can use arrow keys, etc, as indicated on the buttons.
The program will indicate if there has been no change during a time step, in which case there will be no further development. As in the original "game" there are stable patterns and oscillating ones. It is a large grid so even if you see no change there may still be some somewhere: roam around.
The initial setting of cells is random. The faces of the cubical grid wrap around: edge positions are influenced by cells on the far side.
One thing I have noticed, which I find interesting, is that although the first time step may kill most cells (because the initial 50% random filling is too crowded) once the system embarks on an expanding phase there seems to be no end to it: it occupies the grid in a completely sustainable way.
www.grelf.net July 2020