This is great, I never had intuitive understanding of why the naive shuffle was bad other than a vague notion of the fallibility of pseudo-random number generat

This is great, I never had intuitive understanding of why the naive shuffle was bad other than a vague notion of the fallibility of pseudo-random number generators. Seeing a math equation is one thing but seeing a tree of all possible outcomes visualized in front of you not only makes the bias blatant, but also makes it obvious why the bias is occurring.