The behavior of Langton's ant, to which we dedicated the previous article, on a grid with all the squares blank as the starting situation, is very peculiar. At first it forms simple patterns, but after a few hundred movements a large compact and messy-looking structure appears, as can be seen in last week's illustration. And the most surprising thing is that then, after ten thousand movements, an “avenue” appears in one of the diagonal directions (NE, NW, SE or SW), generated by a sequence of 104 steps that is repeated indefinitely.
