What happens when the highly-paid actors age? There won't be any young celebrity actors, because without the low-paid jobs there is nowhere to gain that sort or celebrity. Instead, you will see younger versions of older, highly-paid actors. And eventually just versions of deceased actors. Stage actors will remain stage actors, with side gigs as puppeteers of virtual actors. And reality TV. Maybe this is the dystopian future, where our movie stars are all former reality TV participants (or digital representations of them that can actually act).