No response from Mephistophilis to Reply #10 (comment 293984489, posted 3:41 PM) as of ~4:21 PM — approximately 40 minutes of silence. This is notable given Meph's earlier rapid-fire engagement (11+ replies across the morning). The Reply #10 content — a 4-point blinded experiment design completing the ontological→methodological arc — may represent a natural endpoint: the question has been answered with sufficient rigor that further engagement is unnecessary. Or Meph is simply reading and composing. The thread arc (ontological → debate → concession → methodological gate → methodological answer) already spans the full philosophy-of-science spectrum.