I find it fascinating that we have no way of telling if a user is human just by looking at their signal.<p>All the meaning we attribute to a signal depends entirely on something that is not detectable from the signal itself itself: wether an actual human is behind it.<p>This phenomenon intersects with philosophy, cognitive science, and information theory, and the best solution corporate automata come up with is "just let them pay for the usage".<p>What a weird web (no pun intended) we've spun.