As shown in "Solaricks", Rick created a time loop in C-137 of that day his family was killed. Mr. Goldmanbachmajorian said this:
I was hoping you could help me make sense of a note I found this morning? It's written by someone claiming to be me. They say my mind is 'held captive in a time loop, trapped in the day of a traumatic event by the agony of a formidable intelligence, but also that my captor forgot about aging, that my body spoils and yearns for death while my soul remains stuck in place, caught like a fly in amber.'
How could that day keep repeating but everyone still ages? Did time keep going for everyone to age and the events just keep repeating? That doesn't make sense. I'm not sure after taking minutes to think about it, I don't watch much Sci-Fi other than R&M. I wonder if this is one of those things where not much thought was put into how it works and that's just it.