[fooker]

Please read ‘How to Stop Time’ by Matt Haig

It’s a beautiful short novel exploring this idea.

[RajT88]

I vaguely recall a Heinlein novel which explored it too. Methuselah's Children maybe?

[rwmj]

Time Enough for Love. IMHO much better than Stranger in a Strange Land.

https://en.wikipedia.org/wiki/Time_Enough_for_Love

[frm88]

Otherland by Tad Williams, where the powerful oligarchs of corporations are kept bodily alive bybmachinery, their mind have been transferred to a cirtual reality and they keep on going by making said virtual reality the next hypercapitalist venture.