Granted, I only tested this for a few minutes, but I found that if I thought about "repeat" vs "switch" instead of "d" vs "f", then I could reliably get under 50% prediction. Sure, the prediction rate was high 40's, but that at least means I won!
A lot of it comes down to avoiding auto-piloting into a 50/50 distribution. Subconsciously, "random" means approaches 50/50 since that's how it works, right? I'm sure given enough time, it'll be able to predict me with >50% accuracy, but that's entirely okay. Random doesn't have to be fairly distributed. As long as it doesn't get to 100% then I still have personhood :^)
A lot of it comes down to avoiding auto-piloting into a 50/50 distribution. Subconsciously, "random" means approaches 50/50 since that's how it works, right? I'm sure given enough time, it'll be able to predict me with >50% accuracy, but that's entirely okay. Random doesn't have to be fairly distributed. As long as it doesn't get to 100% then I still have personhood :^)