I went back on seven consecutive days expecting the pattern to continue. He was not there. Not on any of the seven days, not at the times I had previously documented, not at other times I checked. The absence began the same week this documentation went live. I have been trying to think through that coincidence carefully because it is easy to draw the wrong connection and I do not want to document something I cannot support.

Two interpretations. First: the documentation becoming visible triggered a change in protocol — whoever is running this understood that documentation creates risk, and withdrew the most visible element. The man with the clipboard is a high-visibility asset. You do not keep running a high-visibility asset once the target has identified and documented it. You pull it and replace it with something lower-profile, or you wait until the documentation is no longer being actively updated, or you assess whether the target is still worth the exposure.

Second: the cessation of the perimeter walk is itself a signal. It is a demonstration that the walk can be started and stopped on command — that what I was watching was not a fixed behavior but a controlled one. The cessation says: we know you were watching. We are showing you we can stop whenever we choose. The documentation did not expose a vulnerability. It confirmed the capability.

I do not know which interpretation is correct. I know that in either case, the absence is not neutral. The absence is information.