Divisions: plan the decision, not the outcome

You can't control whether the lottery draws your name, whether the storm builds by noon, or whether the group is strong on day four. You can control something better: exactly what happens in each case. That's a division — the plan's version of a watershed divide, where one more step commits you to a valley.

The anatomy of a division

A division lives on a route — a specific leg where the trip could go two ways — and it has three parts. A condition: the question that decides it, phrased so it has an answer (“Cables permit drawn?”, “Forecast under 30% t-storms by 8am?”). Two branches: Plan A and Plan B, each a real sequence of cairns with its own camps, water, and paperwork. And a deadline: the moment the question gets answered — because a decision without a time is just a mood.

Why “we'll see” fails

Every group already has divisions — they're just unplanned. “We'll see how we feel” is a division with no condition, no branches, and no deadline, which means it gets decided by the most tired person, at the worst hour, with the least information. The research on this is old and boring: decisions made in advance, in comfort, with full information beat decisions made on the spot under stress. A division is just that principle with coordinates.

Plan B has to be a real plan, not a consolation. If Plan B is “I guess we go home,” you will talk yourself into Plan A in weather that should have decided otherwise. The best Plan B I ever built — Clouds Rest instead of the cables — got described afterward as the highlight of the trip. Build the branch you'd be glad to take.

Where divisions belong

One or two per trip, at the points of real uncertainty: the permit you might not draw, the pass that needs a weather window, the day whose mileage depends on the group. Not every fork deserves one — a division on every leg is the same as no plan at all. And some divisions are brainstorms on purpose: an open-ended branch that says “ideas for a layover day” is a legitimate use. The discipline is knowing which kind you're writing.