Fix

A company hires a new manager. The previous manager had allowed flexible working hours, but the new manager announces a strict rule: everyone must work exactly 9 to 5, no exceptions. He posts the schedule, locks the doors at 9, and fines anyone who arrives late. There is no room for negotiation or change. What has the new manager done? He has fixed the working hours.

Predestinate (to ordain an outcome in advance with absolute inevitability, often in a theological or philosophical sense) contrasts with fix, which means to lock an outcome so it cannot change through authority, manipulation, or irreversible decision. Fix implies a deliberate, often human action that removes flexibility, while predestinate suggests a cosmic or predetermined certainty beyond human control.