Play John Conway’s Game of Life

...........................O..... ........OO.................O.O... .........O.................OO.... .........O.O..................... ..........OO..................... .......................OO........ .......................O.O....... ........................O........ ................................. ................................. .............................OO.. ..........O..................O.O. ..........O.O..................O. ..........OOO............OO....OO ............O............O.O..... ...........................O..... ...........................OO.... ................................. ................................. ..OO............................. .O.O............................. .O............................... OO...............................

Life Lexicon

(CC BY-SA 3.0)

This Life lexicon is compiled by Stephen A. Silver from various sources and may be copied, modified and distributed under the terms of the Creative Commons Attribution-ShareAlike 3.0 Unported licence. See the original credit page for all credits and the original download location. The styling has been adjusted to fit this website.

Demultiplexer

:demultiplexer A simple Herschel circuit consisting of three eater1s, found by Brice Due in August 2006. An input Herschel places a boat in a location accessible to an input glider. If the boat is present, a one-time turner reaction occurs and the glider is turned 90 degrees onto a new lane.

Game of Life pattern ’demultiplexer’

If the Herschel and boat are removed from the above pattern, the glider passes cleanly through the circuit. It can be used as the "0" output of a one-bit memory cell, where the 90-degree output would be the "1" output. This was the method used to store presence or absence of neighbor metacells in the p1 megacell.

John Conway’s Game of Life

The Game of Life is not your typical computer game. It is a cellular automaton, and was invented by Cambridge mathematician John Conway.

This game became widely known when it was mentioned in an article published by Scientific American in 1970. It consists of a collection of cells which, based on a few mathematical rules, can live, die or multiply. Depending on the initial conditions, the cells form various patterns throughout the course of the game.

Rules

For a space that is populated:

Each cell with one or no neighbors dies, as if by solitude.

Each cell with four or more neighbors dies, as if by overpopulation.

Each cell with two or three neighbors survives.

For a space that is empty or unpopulated

Each cell with three neighbors becomes populated.

The Controls

Choose a pattern from the lexicon or make one yourself by clicking on the cells. The 'Start' button advances the game by several generations (each new generation corresponding to one iteration of the rules).

More information

In the first video, from Stephen Hawkings’ documentary The Meaning of Life, the rules are explained, in the second, John Conway himself talks about the Game of Life.

Stephen Hawkings The Meaning of Life (John Conway's Game of Life segment) Inventing Game of Life (John Conway) - Numberphile

The Guardian published a nice article about John Conway.


If you’ve been thinking “I’d like to sell my Tesla,” check out FindMyElectric.com—the ultimate Tesla marketplace, and one of Game of Life’s supporters!

The Game of Life is also supported by Dotcom-Tools, Load View Testing, Driven Coffee Roasters, and Web Hosting Buddy.

Implemented by Edwin Martin <>