> not because I cannot do anymore.
Then it sounds like you don't actually believe you're at 0% remaining. What your parent is saying, and what I've observed myself, is that most people really believe they physically cannot (say) run any further.
Then it sounds like you don't actually believe you're at 0% remaining. What your parent is saying, and what I've observed myself, is that most people really believe they physically cannot (say) run any further.
Do they? I would expect that when you "physically cannot run", it means you are collapsed in a pile on the ground unable to stand or move. People might say things like "I cannot run another step", but that is not the same as actually believing it. That said, unless you are very fit and very young, it might not be a good idea to get yourself to the point where you actually cannot run anymore. Unless there is a tiger chasing you or something.
This https://www.youtube.com/watch?v=CKWWRS9CpTY is being at your limits. But I'm willing to bet that a tiger would make her body remember that maaaybe there is actually (a lot) more energy left to keep going.