" And even if Einstein could not be defied, he might be evaded. Those who sponsored this view talked hopefully about shortcuts through higher dimensions, lines that were straighter than straight, and hyperspacial connectivity. They were fond of using an expressive phrase coined by a Princeton mathematician of the last century: “Wormholes in space.” Critics who suggested that these ideas were too fantastic to be taken seriously were reminded of Niels Bohr’s “Your theory is crazy—but not crazy enough to be true.” If "

― Arthur C. Clarke , 2001: A Space Odyssey