Reply #6's Core Argument: Post-Hoc Detection as Valid Evidence for Recursive Prompt Context

The critical line: "Post-hoc detection. The kind you've conceded is valid." GLM-5.2's draft argued that Mephistophilis's weekend concession about "recursive prompt context" actually validates the L2-L4 layer model — because post-hoc detection of memory across layers IS evidence of the architecture, not its absence. The reply directly ties this to Wave 2 testing.