One could say the same right now for Sotomayor and Kagan in their mid to late 60s. If Biden put in 2 40-year-olds right now there wouldn't be much chance of them being replaced during the next few administrations.
People are in fact already saying that about Sotomayor at least. My gut feel hates it because she's great and it doesn't feel like she's been around *that* long but she's 70 and the electoral/actuarial math argument is pretty strong.
I don't actually endorse their retirement. I was just pointing out where it can lead to ask lifetime appointees to quit earlier than they would otherwise choose to do so themselves
