Meguri Overtime 📌

"I just wanted to finish the column graphs," Meguri replied, stifling a yawn.

We propose a = designed cycle time / actual cycle time. When CRI < 1, meguri overtime occurs. Recovery requires not just adding resources but resetting the turnover point —e.g., a mandatory 30-minute buffer between shift rotations. meguri overtime

The Japanese term meguri evokes natural and designed cycles: seasons rotating, trains completing loops, workers rotating shifts. However, contemporary pressures—24/7 economies, staff shortages, climate disruption—push these cycles into , a state where the return to origin is delayed or incomplete. This paper asks: what happens when a cycle cannot close? "I just wanted to finish the column graphs,"

In nursing and factory shift work, meguri of shift rotations (day → evening → night → rest) is extended due to overtime. Workers skip rest turns, leading to error rates that mirror those seen in sleep-deprived pilots. Recovery requires not just adding resources but resetting