In this highly readable and exciting work, Kaku builds a case for achieving Arthur C. Clarke’s 3rd law: “Any sufficiently advanced technology is indistinguishable from magic.” Kaku shows how the terrain of the impossible, typically found only in science-fiction, is being systematically conquered by science. Force-fields, teleportation, robots, time-travel, and starships are dealt with seriously and on a time continuum: how long until we achieve these. By classifying these various “fantastical” ideas into three different ranges of time, Kaku argues for when we’ll see them.
Class 1 Impossibilities: technology that is not possible today but within the realm of physics. These are possible within a century or two. In this class, Kaku lists force-fields, invisibility, phasers and death-stars, teleportation, telepathy, psychokinesis, robots, ETs and UFOs, starships, antimatter and anti-universes.
Class 2 Impossibilities: Technology that lies on the cusp of our knowledge of physics. These are possible perhaps within millennia or millions of years. In this class, we find faster than light travel, time-travel, and parallel universes.
Class 3 Impossibilities: Technology that violates known physical laws. Here we find perpetual-motion machines and precognition. That’s it, only two.
Are you thinking what I am thinking?