They will find out at the last second. There's no reason to give 2 weeks notice, since nobody's coming back like the Chief pretended on TV. Wave 3 quoted Conrad as saying the retirements were due to Bevin wanting to change the retirement system. Anyone retiring for that reason alone should understand there's nothing stopping them from cutting existing pensions. They already cut cost of living raises from existing retirees. The smart people are retiring at 20 and taking a job somewhere else to start