system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: Can you get to a point where it's not possible to get better at a skill? As in genetic cap or something?

I heard people say things like "if you aren't getting better, you reached your skill level" I really don't find this makes sense, can someone explain it to me?
gpt
your body (and also your brain) is only capable of some things. Imagine you start lifting weights. You train, go to the gym, and get better at it as your muscles build up. You take adequate trainings and change your diet to help the process. At some point, you will reach a limit. Your muscles can't grow eternally and your skeleton isn't made from titanium so even if your muscles can keep up, your bone structure probably can't. 

With your brain it is similar. You are limited by what is possible, and what is given to you. You can't really change how intelligent you are, how fast you learn and how much time you need to spend WITHOUT studying to give your brain time to adequately process the information. You are limited by hours in a day that you can actually use to study, and you are limited by your capabilities. At some point, you might have to study 500 hours to get a 0.1 point increase at a test (hypothetical example).