An anonymous 4chan user posted a solution to a mathematical problem related to superpermutations, which was later recognized and built upon by mathematicians. The problem involves finding the minimum number of episodes to watch in order to see an entire series in every possible order. This solution was related to a 25-year-old math puzzle and has implications for understanding superpermutations. The discovery highlights the potential for hidden knowledge and solutions to be found in unexpected places on the internet.