Monday, March 18, 2013

You are not your brain

Imagine someone makes an exact replica of your brain.  Now there are two physical instances of your brain in existence with the exact same inputs and outputs.  Which one is you?  Why, the original of course.

Therefore, you are not your brain.


  1. This does not make sense.

    The original is getting its inputs from and sending its outputs to my body (the body apart from the brain). Where is the copy getting its inputs and sending its outputs?

  2. For the purpose of the thought experiment, they are equivalent.