If you want to see what this OTCA Metapixel can be used for, besides simulating Conway's Game of Life inside Conway's Game of Life, I highly recommending reading:

https://codegolf.stackexchange.com/questions/11880/build-a-w...

Over four years a number of users from StackOverflow built Tetris using the OTCA Metapixel. To summarise, they built layers of abstraction to move from the Game of Life, to Metapixels, to wires, to logic gates, to a RISC computer. There they developed their own assembly language to write tetris and finally compiled and ran it. In total the world is 2,940,928 x 10,295,296 blocks in size.

Here's an interpreter for that language running Tetris: http://play.starmaninnovations.com/qftasm/#jllHdnBGSP