All thinkers

CGP Grey: 3 ideas worth knowing

3 ideas from CGP Grey, each explained in a minute and credited to the original work. Free on Savvy.

• Watch: what split-brain patients reveal about the two halves of your brain

  When the link between the brain's hemispheres is cut, each side can act on information the other never received.

  — CGP Grey, You Actually Share Your Brain With a Silent Stranger

• Watch: would a teleporter move you, or kill you and build a copy?

  The teletransportation problem: if a machine destroys you here and rebuilds you there, is the person who steps out still you?

  — CGP Grey, Why Teleportation Would Kill You

• Watch: what machines did to horses, and what that means for human work

  The question behind the Luddites' protests, asked again for the age of automation: what happens to workers when machines can do the job?

  — CGP Grey, What Happened to Horses Is Happening to Us

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