@LazyDays
An 'RL' glitchzone would be pretty terrifying to see.
Holy mother of fuck, you're right.
Imagine if you walked into a building and fell and sudden fell underneath the earth into kinda some alternate dimension where no one existed but all objects were left alone. Or if invisible barriers suddenly stopped you from moving when you least expect it and if you went to certain places you were forced back by some mysterious force. Or you were cursed with having people and objects suddenly appear instantly right in front of you and you had to be constantly paranoid of being telefragged by it and having something (or someone) teleport into your body.
And this is just from borrowing from the most common game-like elements that you can experience in-game. If the fundamental laws of physics were shattered, it would be god damn terrifying because just about anything could be on the table as a possibility. Imagine, for instance, if you were living in a simulation and put through "I Have No Mouth and I Must Scream" type shit. Or if the simulation suddenly had physics detection issues and suddenly water particles were modeled incorrectly and were as sharp as razors and drinking from a glass would cause the water to cut straight through your neck, torso and through your butt in the most gory and horrific manner possible - and anyone caught outside in a rainstorm would be eviscerated like they took a stroll through a woodchipper. Oh, and a memory leak causes system slowdowns for you erratically - meaning that a single second feels like a thousand years and just as soon as you think it's over... it happens again... and again... and again... and again... and... again... To the point where even if it drove you insane to the point you wanted to kill yourself to end the torment you'd have to take several million years to do it.
God damn terrifying is right.