>>12801980>are you fucked if you wait until your 20s or later when it comes to getting a grasp of some subject?No, although personally I've found that in my adult life I've got other shit to do most of the time and reading about things for 6h a day in my limited free time is less likely to happen with long work days and no mom to do the cooking and cleaning and such.
>Is there any hope for understanding and mastering at least the basics of physics if you had a hard time with it in elementary and high school?Probably, though I guess there are people around for whom it isn't feasible.