The Body Theory says that that’s what makes you you. The Brain Theory says that wherever the brain goes, you go—even if it goes into someone else’s skull. Body Theory says “Of course you woke up in your own body—your body is what makes you you. Likewise, you’re not a set of brain data, you’re a particular database whose contents are constantly changing, growing, and being updated. ___________If you’re into Wait But Why, sign up for the Wait But Why email list and we’ll send you the new posts right when they come out.