The Matrix Resurrections: 10 Biggest Questions It Leaves Unanswered
5. Why Haven't Neo & Trinity Aged 60 Years?
It's made clear that the film is set 60 years in the future, so why haven't Neo and Trinity also aged the same amount of time as, say, Niobe? The film even posits this question itself.
Though the movie doesn't come right out and say it, you can do some reading between the lines and basically figure it out.
We know that the Machines rebuilt both Neo and Trinity's bodies and plugged them back into the Matrix due to the enormous amounts of power they generate, and it's fair to assume that this rejuvenation process also slowed their ageing somehow.
The resurrection pods may have put them in some form of stasis which has only resulted in them ageing around 20 years, and given that the jacking ports on their bodies are massively advanced compared to the first movie, it's possible they received some internal cybernetic enhancements too.
This is basically Resurrections' equivalent of "nanomachines, son" - it's reasonable to accept that the Machines found a way to decrease Neo and Trinity's ageing in order to make them a viable power source for longer, even if we don't have the how outright confirmed.