https://en.wikipedia.org/wiki/Conway%27s_Game_of_Life

It's an old thing that's relevant in computer science theory and is popular among nerds.

The rules:

• There's a grid of cells. Each cell can be either alive or dead.

• Each cell has eight neighbours.

• Any live cell with two or three live neighbours survives to the next generation. Else, it dies.

• Any dead cell with exactly three live neighbours becomes a live cell.

Different combinations of cells do different cool things. A game of life is turing complete, meaning it can (theoretically) be used to do any algorithm "real" computers can do.

My addition doesn't mean anything much, it's just shitty fanfiction. :D