has anyone noticed that the non-euclidean_penetration tag is incorrect? non-euclidean means the space itself defies the rules of euclidean geometry, i.e. angles of a triangle not adding up to 180°, shortest path between two points not being a straight line, etc. portals still obey these rules. i guess it could be said that a gravitational field within the pseudo-riemannian manifold that the universe exists in is non-euclidean, but that would also include all normal penetration. e621 please fix