What does it mean that seasonal experiments?

Some behaviors work better in certain seasons — test seasonally.

Example: Every January you set the same resolution: run three mornings per week before work. In January the alarm fires at 6 AM into total darkness and near-freezing temperatures, and by mid-February you have abandoned the experiment for the third consecutive year. You conclude you lack the discipline for morning exercise. But in May, without any resolution, you find yourself lacing up running shoes at 6:15 because the sun is already up, the air is mild, and your body woke before the alarm. By July you are running four mornings a week without friction. By October the runs feel harder. By December you stop. The pattern repeats, and you keep blaming yourself rather than noticing the obvious: the experiment is not failing because of you. It is failing because you are testing a warm-season behavior in a cold-season context. The variable that changed was not your discipline — it was fourteen hours of daylight versus nine, fifteen degrees Celsius versus minus two, and a circadian system that fights early waking when sunrise comes ninety minutes after your alarm.

Try this: Create a seasonal experiment calendar. Take one behavior you currently practice (or want to practice) and design four seasonal variants — one per quarter. For each variant, specify: the behavior, the time of day, the environmental conditions you expect (daylight, temperature, schedule density), the success criteria, and what you will substitute if the primary behavior becomes seasonally impractical. For example, if your primary behavior is outdoor running, your winter variant might shift to indoor rowing at the same time, with adjusted success criteria that account for the transition cost. Write all four variants on a single page and pin the current quarter's variant where you will see it daily. Set a calendar reminder for the next equinox or solstice to review and activate the next variant.