How Random is xkcd? - Comfortably Numbered

it is random. provably random. but like with all things statistics, the math doesn't match the feelings.

The author investigates the randomness of the xkcd "random" comic button, using statistical tests to determine its quality. The article explores concepts of randomness, including the use of random number generators in cryptography and the counterintuitive nature of randomness. It also discusses the birthday paradox and its implications for the perceived bias in the xkcd random comic selection.