>>212263040by the way, the problem here isn't that he doesn't know why the mirror reflects left and right but not up and down, the problem is that his reaction to not knowing it is "wow, existence is full of unexplainable paradoxes". rather than simply asking someone who knows, he states that he has spent decades, not years, fucking DECADES, unable to explain the concundrum.
the solution is incredibly simple by the way - it's that mirrors don't actually reverse left and right, they reverse forwards and backwards, which has no effect on the y axis (up-down) but does have an impact on the x axis (which covers left and right)