The Carousel
Think of a merry-go-round with five rings, each spinning at a different speed. The inner ring completes a full turn in 2 clicks. The next in 3. Then 5, 7, 11.
They all start aligned. How long until they align again? Exactly 2310 clicks — the thin ring. In the True Form, give each ring its full depth: 8, 9, 25, 49, 11 positions. Now it takes 970,200 clicks.
Adding 1 to any number advances every ring by one click. This is the carousel — addition as rotation through a five-dimensional torus.
"Karusel, karusel! Nachinaetsya rasskaz!"
— Vesyolaya Karusel (1969)