Same evidence

The middle check asks what you would watch to tell whether each option is working. If both options are judged by the same signal, measured the same way, no test result could ever favor one over the other, so they carry no separate information.

The middle check asks what you would watch to tell whether each option is working. If both options are judged by the same signal, measured the same way, no test result could ever favor one over the other, so they carry no separate information.

Example

You ask what proves each productivity system is working. For all three, the answer is identical: do you actually open the plan around 3pm on a busy Wednesday. One check, one verdict, so time-blocking and the bullet journal cannot score differently.