Jaccard distance and Normalized Information Distance
https://www.youtube.com/watch?v=t1rFAyPp7s0
Videos
How to play the Complexity Guessing Game
https://www.youtube.com/watch?v=yNXvksfB-o4
11th Int’l Conference on Computability, Complexity and Randomness 2016
https://www.youtube.com/watch?time_continue=2&v=1kTtBlYbk9s