https://www.csa.iisc.ac.in/~arindamkhan/courses/toolkit21/TheoristsToolkit.html, lectures 8 through 11
https://www.cs.princeton.edu/courses/archive/fall11/cos597D/ lectures 1 through 4, skip graph entropy stuff
https://www.tcs.tifr.res.in/~jaikumar/Papers/EntropyAndCounting.pdf