if a hundred people on a population of 8 billion can do it, on command, at will, immediately, it's an impossible feat.
It's not the act of changing the pupil size that's the impossible feat, it's the "doing it instantly, on command" part that's the impossible feat. Even if lots of people can change their pupil size, virtually no one can with the snap of their fingers.
It's not the act of changing the pupil size that's the impossible feat, it's the "doing it instantly, on command" part that's the impossible feat. Even if lots of people can change their pupil size, virtually no one can with the snap of their fingers.