Today I watched this fun video from Numberphile. I watched it earlier in the month—it’s the one I stopped so I could investigate its topic a bit myself—but I had since forgotten the details. I’d recommend it to all of my readers. It is very accessible but has connections to more advanced topics. When I am feeling better, I would like to work on proving the theorem presented at the end of the video.
What a great video! It is, as he says, accessible to a 9 year old, but it leads you to to some interesting math that’s accessible to someone starting college. There’s a question asked in the video that they don’t answer which is accessible to someone like a senior math major. But all this grows out of a question anybody can understand. Definitely worth 11 minutes of your life. Thanks, Olly!