I usually don't have any trouble explaining it to someone that doesn't have such a hard time comprehending the explanation. If it never does it for you, that's great. Consider yourself blessed. You are truly an icon in the handgun world. I wish all of us could be so fortunate.You can hold it as loose as you want and it may still have a solid enough platform to function properly against. If the entire lower receiver is allowed to move rearward freely AS the upper is also trying to move, it will malfunction. If you suspend your Glock by strings tied so that the slide can freely move, it will malfunction pretty much 100%of the time as would most any other semi-auto pistol.
I've tried, you no savvy.
I give up.