Classes of Seemingly Impossible

Renowned physicist Michio Kaku reminds us that nothing should be considered impossible or beyond our eventual understanding with his Classes of Seemingly Impossible .

In “Physics of the Impossible,” Kaku divides the “seemingly impossible” into three classes: Class I consists of technologies that “might be possible in this century,” including “teleportation, antimatter engines, certain forms of telepathy, psychokinesis, and invisibility.” Class II awaits the wisdom we will have acquired in “millennia to millions of years in the future” and includes time machines, hyperspace travel and popping through wormholes in space into another universe. Class III is the “perpetual motion machine” and precognition. Kaku concludes that if “they do turn out to be possible, they would represent a fundamental shift in our understanding of physics.”

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