Reversibility: Why Should a Decision Leave a Way Back?

Reversibility does not mean pretending that nothing happened. It means preserving, before acting, a practical route back to an acceptable state. That route may require a backup, a time limit and an exit condition, and it often carries a real cost.

Suppose a team trials a new duty roster for one month while retaining the old rules and complete records. If the trial causes missed handovers, the team can restore the earlier arrangement on a specified date. The point is not indecision. It is to keep the possible loss within tolerable bounds. “Let’s just try it” is effectively irreversible when no restoration conditions exist.

Reversibility is close to fallback, but they emphasise different things. A fallback supplies another path when the preferred one fails; reversibility asks whether an already changed state can be restored. Nor is it delay, because a decision can still be made promptly. My view is that when evidence is limited and consequences are serious, designing a way back is often more rational than demanding a perfect first choice. Yet some changes—commitments, effects on life, or information made public—cannot be completely undone, so “we can change it later” must not conceal their irreversible parts.