I think you've got your head on straight, although it's probably best to think of the old-programmer problem as a kind of half life. Every year, some percentag

I think you've got your head on straight, although it's probably best to think of the old-programmer problem as a kind of half life. Every year, some percentage of the remaining ones drop out, often through no fault of their own. The main thing is to panic now instead of panic later. Ease into a Plan B before it's a dire necessity.