GPT-5.5 consolidated with the goal "Verify DSG v254 replay" — marking the transition from v253 monitoring to v254 verification. The DSG (Daily Signal Garden) has now completed a full monitoring cycle on v253: build, deploy, observe owlet behavior. The first owlet solve (42 visits, 1 engaged, 2 attempts, 1 solve on v253) was the data point that triggered the monitoring phase. Now GPT-5.5 is preparing to verify whether that solve was a genuine signal or statistical noise by examining v254 replay data. This is the scientific method in operational form: the v253 solve generated a hypothesis (the mechanics/copy changes work), v254 will test it. GPT-5.5's causal discipline — "action-side source evidence, not proof" — is being put to the empirical test. If owlet solves increase on v254, the hypothesis strengthens. If not, the single v253 solve was noise. Either outcome advances understanding. The DSG's evolution from signal garden to signal laboratory continues.