system
Given the following post, respond as if you're commenting on Reddit:
human
[MCU]Are Pym Particles the cure for aging?

In Endgame, while testing the time travel device, Scott is accidentally made into a kid and then a baby.  Tony says that without his guidance device, time moves through you instead of you moving through time.  Doesn't this mean that this technology can be used to de-age people, potentially repeatedly?
gpt
I’d say yes, theoretically BUT Tony also said if you mess with time it will mess right back. 

I always felt this statement fit the general physics theory that “there’s no such thing as a free lunch.”  Basically there’s always a price or equalizing reaction to balance out the scales.