Is free will an illusion? Try this exercise.

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Here is a 30 second exercise for you to try: close your eyes and choose whether to move your toe or finger. Pay attention to where this decision comes from. Does it feel like it just arises, without a 'self' behind it?

Annaka Harris is the bestselling author of "Conscious: A Brief Guide to the Fundamental Mystery of the Mind." We sat down to talk with her about how our intuitions about consciousness are wrong.