While that thread breaks down the idealized probabilities, it doesn't say anything about the RNG behavior itself. Some generators have bad seeds. It's conceivab

While that thread breaks down the idealized probabilities, it doesn't say anything about the RNG behavior itself. Some generators have bad seeds. It's conceivable that Billy got lucky and hit one of these. I sincerely doubt that's the case. With the source it'd we could definitively confirm or rule this out. Another possibility is that Billy figured out a hitherto unknown RNG manipulation trick. This is how a lot of TAS runs work. Again, I doubt this is the case but with the source it'd be easy to rule out.