In the same way that, if we were unfamiliar with a pool table, we could not rule out that the table had been constructed around the balls. https://twitter.com/RealSaavedra/status/1246169995588984833

The reference for the previous tweet in this thread is a short story by Isaac Asimov entitled "Darwinian Pool Room." Since I've been giving reading suggestions for quarantine, add it to your list for today. Available here in plain text: http://www.miketaylor.org.uk/xian/pool-room.txt