It was just another day in class when Makie said, "Okay, so I watched some reeeeaally trippy anime last night, and the DVD menu on it asked me whether or not I exist. So, um, do I?"
Yue, not looking up from her book, said, "René Descartes posited that if you're capable of doubting whether you exist, then logically, you must exist. 'I think, therefore I am'."
Misa then asked, "Okay, that makes sense, but what if we turn that on its head? 'I think not, therefore I am not'?"
Yue attempted to turn that over in her mind. "If you don't think, then you don't exist?"
Makie then asked, "So if people who don't think aren't real, then does that mean there are no stupid people in the world?
Omake
And then Makie disappeared in a puff of logic.