A juicy [[Latin}}ism that hails not from the dusty halls of nineteenth century jurisprudence but the even dustier ones of seventeenth century {{t|metaphysics]]. Res extensa is — per Des Carter, stuff that’s out there in the world, the existence of which depends on your frail perceptual apparatus, and may be contrasted with res cogitans — stuff that is only in your head, such as famously, one’s knowledge of one’s own existence. That one cannot plausibly doubt, because it needs to be true — that is, one needs to exist — for one to doubt it in the first place NOW GET ON WITH YOUR WORK AND STOP TRYING TO DISTRACT ME BLENKINSOP MINOR