batmanmg wrote:the only reason we can't point to the fourth
dimension is that our bodies cannot produce a force in the
fourth dimension becuase no part of our body exists in the
fourth dimension... also becuase you cant face in that direction
so the photons cant hit your eyes. Now, this is actually a very
interesting area of speculation... Imagine a 2D being, say in a
roughly hexagonal shape, moving around on the plane. Suppose
that this plane actually resides on a table of a 3D being,
although the hexagon has no way of directly knowing this. Now,
light in the 3D room actually would reach the hexagon: in fact,
at every point of its body, both inside and outside. Of course,
it doesn't know the real nature of this "background radiation",
which appears simply as an inherent property of 2D space. Now,
suppose that one day this 2D being somehow guesses at what is
really going on. How would it detect 3D light? It could build a
2D array of cells that are stimulated by this external source,
and wire them in such a wa