What does it mean that treat new behaviors as experiments?

Every new behavior you try is a hypothesis about what will work — test it.

Example: You decide to start waking up at 5:30 AM to write before work. Under the commitment frame, this is a resolution — you are now a 5:30 AM writer, and any morning you sleep in is a failure. Under the experimental frame, this is a two-week test of a specific hypothesis: "Waking at 5:30 will give me sixty focused writing minutes before my energy is claimed by work obligations." You set a start date, an end date, and a simple metric — words produced per session. After fourteen days, you review the data. You discover you wrote productively on nine mornings, struggled on three, and slept through two. The productive sessions averaged 740 words. The failed sessions clustered on mornings after late-evening social events. Now you have information, not guilt. You can refine the hypothesis, adjust the conditions, or test an alternative. The behavior is the same. The psychological relationship to it is transformed.

Try this: Identify one behavior change you have been considering but have not yet attempted, or one you have attempted and abandoned. Reframe it as a two-week experiment. Write down the following in your external system: (1) the specific behavior you will test, stated with enough precision that someone else could verify whether you did it, (2) the hypothesis — what you expect will happen if you perform this behavior consistently for two weeks, (3) the metric — what observable evidence would confirm or disconfirm the hypothesis, and (4) the end date. Begin the experiment tomorrow. At the end of two weeks, write a one-paragraph results summary. The point is not whether the experiment "worked." The point is that you ran it, measured it, and now have data.