really naive question here, i don't know anything about physics, in a professional sense.
Light is a electromagnetic wave, and itself requires 3 dimensions to propagate, then how can a one-dimensional or 2 dimensional being even perceive anything ?
AND
If the existence of these lower " dimensions " are questionable , how do we know higher dimensiions exist ? Are we sure we are correct in conceptualizing the concept of dimensions , maybe its something else entirely...?
