The fist of mathematical justice! Mathematicians everywhere are clenching their fists at this egregious algebraic error. The equation claims x + x = x², which is only true when x equals 0 or 2. For literally every other number in existence, this is mathematical blasphemy. It's like saying "2+2=22" and expecting not to be haunted by the ghost of Pythagoras. Even Arthur's clenched fist knows that x + x = 2x, and no amount of "respecting opinions" will change the fundamental laws of algebra. Sorry not sorry, but math doesn't care about your feelings!