I didn't immediately see in the code why the monthly hypothesis was ruled out, but I'm guessing it's run daily and that's why it should be different everyday.

I think those seeds are sometimes generated from the computer's clock, so my last grasp at vindication is that maybe it's pulling the month for the seed, rather than the milliseconds.

Undisciplined

Yes, or there is indeed something wrong with the RNG. Reusing seed or something? But no idea how that could happen. [It's not even possible to seed the RNG ourselves.](https://stackoverflow.com/questions/521295/seeding-the-random-number-generator-in-javascript)