Langton’s ant
An ant walks a torus, flipping each square as it comes to it, turning left if it was empty, turning right otherwise.
If you wait here long enough, you’ll see it build a highway (nobody knows why), and run into its own past.
An ant walks a torus, flipping each square as it comes to it, turning left if it was empty, turning right otherwise.
If you wait here long enough, you’ll see it build a highway (nobody knows why), and run into its own past.