1. Support them comfortably for the rest of their lives, retrain the ones who wish to be retrained. (too crazy?)
2. Euthanize them in a kindly fashion, ie with laughing gas. (obviously ridiculous)
3. Euthanize them in a cruel way, ie humiliate them by making them beg their families for care and resources, starve the ones with no family. Let them die of exposure if they haven't saved a fortune and can't cope gracefully with rapid technological progress. (the way we've been doing it)