Check the consequence across time horizons

A choice can be good at one day, bad at one year — name the result at each horizon.

Why it works

First-order thinking collapses time into "right now", and present bias makes the near-term effect feel decisive. Forcing yourself to state the consequence at distinct horizons (today, this month, this year) separates short-term relief from long-term cost, which is exactly where many bad decisions hide their price. Spreading the effect across time exposes the trade you’re actually making.

How to do it

1. For the decision, write the likely result in a day, a month, and a year.
2. Notice where the sign flips (good now, costly later, or vice versa).
3. Decide which horizon you’re actually optimizing for, on purpose.

Evidence

Built on robustly documented present bias and temporal discounting — people overweight near-term outcomes relative to later ones. The multi-horizon check is a heuristic that counteracts that real bias. (observational)

Discounting is well established; the specific three-horizon exercise is an applied heuristic, not a tested protocol.

Sources

• Temporal discounting / present bias literature (e.g., Frederick, Loewenstein & O’Donoghue, 2002 review)

Common mistake

Judging the decision only by how it feels today, letting present bias hide a steep long-term cost.