Hit points & saving throws are another example, and, as Morrus points out, the debates those spawned go way back (though with the reverse of the emphasis you typically get, today), not just to the early days of these forums and to UseNet and BBSs and Out on a Limb, but, apparently, to people just harassing EGG about it enough that he wrote a whole treatise on the topic of hps in the 1e DMG.![]()
There's a difference between simplifications of reality for ease of play and things that fall out of the realm of possible. If I punch somebody hard enough an long enough eventually they will fall unconscious. HP may be a greatly simplified way of representing that, but it's simple and it works.
That's different from a rogue's Blinding Barrage where they get to attack and blind multiple opponents because they have possession of a single dagger.