RPGMemes

I wasn't arguing in bad faith. Everything I said was factual, honest, and trustworthy. You are correct that a nat 20 caused them to be really smart and have the best chance to read the runes (nothing shows them actually reading it to be fair). This is because the nat 20 is the highest possible roll available to the player, before modifiers are added! In many instances, rolling that high passes skill checks up to "Hard" (according to the DMG) automatically unless you have some negative modifiers. With the assumption that this player was attempting something actually attainable, this high roll is translated as the character having the absolute epitome of their ability to translate the runes (whether or not it is successful.)