Theoretically yes we should make them functional again. But re-spilling takes longer than expected, doesn't happen very successfully across the board and is ef

Theoretically yes we should make them functional again. But re-spilling takes longer than expected, doesn't happen very successfully across the board and is effectively a huge hole in that theory. And that's if the people are close enough to the skill domain to manage the jump. Side note- people underestimate how variables govern human learning, Native ability, language skills, previous success with studies, self discipline, presence of children, health, spare time, non competing obligations, nutrition.