“The quantum theory of parallel universes is not the problem, it is the solution. It is not some troublesome, optional interpretation emerging from arcane theoretical considerations,” says David Deutsch. “It is the explanation, the only one that is tenable, of a remarkable and counter-intuitive reality. Everything in our universe — including you and me, every atom and every galaxy — has counterparts in these other universes.”
“Our best theories are not only truer than common sense, they make more sense than common sense,” Deutsch wrote about the most mind-bending aspects of particle physics, including the tendency of matter to exist in more than one place at a time.
In the TED Conference video filmed at Oxford University, Deutsch will force you to reconsider your place in the world, and about our species’ significance in the universe. Far from being simply “chemical scum,” quoting Stephen Hawking, we have the ability to gain knowledge, the importance of which, he says, is that we are always equipped to solve problems (including global warming). The brain contains the tools we need: knowledge, reason and creativity. It’s a thrilling, and much needed, profoundly optimistic argument.