Thiccness #math #dimensions #Tibees

say there is a two-dimensional world where everything is assumed to be infinitely thin and constrained to only exist on the plane of this piece of paper. Now what if the 2D creatures actually had a slight thickness, a small height that extends out into the third dimension? If everything and everyone had the same thickness and they had no power to move or feel in this third dimension, do you think they would even notice? This is only speculative, but do you think that we could also have a slight thickness in the fourth dimension because we might not notice it either?