system
Given the following post, respond as if you're commenting on Reddit:
human
[Rick and Morty] When Morty first plays the video game Roy they imply it felt like a full lifetime to him. Could you use this platform to have a ton of extra time to learn new skills in a relatively short amount of time in the non-game universe(s)?

Think about it. If it felt like many decades to Morty while he was playing Roy, and thus why he came out with a minor existential crisis after he died in the game, while it looked like it felt like several minutes to Rick, couldnt you create an educational platform that allowed you to spend those decades learning? 

Or even in theory imagine you just play the game but in the game you go to school for nuclear physics, and get a PhD would you be an expert in nuclear physics when you came out? 

Obviously I assume things like the matrix where neo learned Kung Fu wouldn't work because you wouldn't have the same muscle memory and coordination as your in game character. 

But for strictly mental learning I would think it would follow that you retain that knowledge and skills.
gpt
This depends how the game is tricking you into feeling the time dilation. It's possible that all of that information (in your example, the nuclear physics PhD) would be solely in your short term memory. In which case, you wouldn't really be able to remember it unless you sat down and played the game repeatedly, which is just... studying.