Theory 84/Déjà vu/Ratio lens
Frequency Is Fatigue Against Arousal
The claim
Déjà vu frequency is set by the ratio of fatigue to arousal, peaking where the two combine rather than at either extreme.
01Mechanism
Timing mismatches are most likely when processing speed is unstable, which is the mid-range state.
02Prediction
Frequency should peak at an intermediate ratio.
03Refutation
Frequency increasing with fatigue would remove arousal.