Technology John Conway, inventor of the Game of Life, has died of COVID-19

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Princeton mathematician John Conway has died of the coronavirus. He was 82 years old.

The British-born Conway spent the early part of his career at Cambridge before moving to Princeton University in the 1980s. He made contributions in various areas of mathematics but is best known for his invention of Conway's Game of Life, a cellular automaton in which simple rules give rise to surprisingly complex behaviors. It was made famous by a 1970 Scientific American article and has had a lively community around it ever since then. (Don't confuse it with Milton Bradley's board game of the same name.)

Conway's Game of Life is played on a two-dimensional plane with square cells. Each square can be either black ("alive") or white ("dead"). Simple deterministic rules dictate how the state of the board in one step leads to the next step. If a live square has two or three live neighbors (counting diagonals), it stays alive. If a dead cell has three live neighbors, it switches to black and becomes alive. Otherwise, the cell becomes—or stays—dead.

Conway developed these rules in the late 1960s, before the invention of the personal computer. He performed early experiments on a Go board and discovered that these rules could produce surprisingly complex behaviors. Before long, people were writing software to accelerate runs of the Game of Life.

One of the first non-trivial structures to be discovered was the glider, a five-square structure that moves diagonally across the board. People soon discovered that a wide range of these moving structures, dubbed spaceships, were possible. Spaceships could be of different sizes and move at different rates. They could also move in a number of different directions: vertically, horizontally, diagonally, and even at other angles.

Read more here. (Ars Technica)
 
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