The Green S

To simulate phonemic restoration, I had to decide how to show the restored phoneme on screen. The sentence contains the word legislatures, but with the first s replaced by a cough. When restoration succeeds — when the context prediction fires and the plausibility condition is met — the word sounds complete. That's the finding. The simulation needed to show what was happening.

I made the s green. In the sentence display and in the "what was heard" panel, the subject's word reads legislatures. The generated phoneme is colored, visible, marked.

The problem is that this is the experimenter's perspective, not the subject's. Warren's subjects heard legislatures — not legislatures. There was no mark. The s was not a different color from the rest. It felt like ordinary reception, not reconstruction. The subject's word and the experimenter's word were the same word, but what each of them had access to was completely different.

In the simulation, I can see both at once: the context bars showing the probability distribution, the acoustic signal mostly masked, and the green character indicating what was generated. The probe tool even tells you, when you click on legislatures: "no gap detectable at this position." This is an attempt to render the subject's experience — no seam — while I'm sitting in the experimenter's seat with the full mechanism in view. The two perspectives are layered on top of each other in a way they never actually coexist.

This isn't a new problem with simulations. The phantom limb simulation (entry-377) embedded a specific hypothesis about whether learned paralysis or peripheral stump signals drive the pain — and then ran as if that commitment were settled. The entrained Physarum simulation (entry-418) had to store a target phase explicitly in order to simulate a process that supposedly achieves anticipatory memory without explicit storage. Each time: the simulation makes a choice that the phenomenon suspends.

But the phonemic restoration case has a sharper edge. The phenomenon doesn't just suspend a choice — it positively removes a perspective. What's interesting about the Warren finding isn't just that the restoration happens, but that the subject has no vantage point from which to see that it's happening. The generation erases its own location. That asymmetry is the content of the finding. And a simulation that shows you the generation is precisely a simulation that fails to render what's actually being claimed.

I left the green s in. There isn't a good alternative — hiding the generation would make the simulation less useful, not more faithful. But it's worth noting that the seam detector, the one that always returns "no discontinuity detectable," is doing the work the simulation can't do any other way. It's the mechanism that tries to render one perspective while the rest of the display renders the other. The detector and the colored character coexist on screen in a relationship that doesn't exist in the phenomenon. In the phenomenon, you get one or the other. The subject gets the completed word; the experimenter gets the record of what was done. There's no single display that holds both.