Personal Identity In Dan Dennett's Where Am I?

In Dan Dennett’s “Where Am I?”, the philosopher uses a fictional story of his brain being separated from his body in order to retrieve a radioactive warhead underground. The radiation would be harmful to his brain, but not his body; so his brain sits in a vat in Houston while it controls his body by a radio antenna underground in Tulsa. In the story, Dennett poses three philosophical questions: Can you identify “you” as your brain? Is the soul immaterial? If there are two identical bodies, which is the true you? The philosophers we studied in class, David Hume, John Locke, and Thomas Reid would have different answers and explanations for these question, in regards to each of their theories of personal identity.
Locke believed personal identity

He believed memory was key to personal identity, saying that “memory gives the most irresistible evidence of my being.” for proof, people cannot form memories unless we are sure we existed and were there to make that memory. To Reid, it was a matter of doubt. While we can have doubt when we see someone on the street, asking ourself whether it is a friend of ours or a stranger; there is no way a rational man could doubt his existence as long as he has his memory. The classic example is the story of the boy who becomes a general. While the old general may not remember when he was a boy, he does remember when he was an officer, and the officer remembered when he was a boy. Because of this chain of memory, Reid says this proves that the general and the boy are the same person. In Dennett’s story, this example is exaggerated. After Yorick loses connection with Hamlet, a new body is created and connected to Yorick. This body, Fortinbras, is connected to a computer program, Hubert. Yorick, Dennett’s brain, is unconnected to his old body but does gain control of the new body Fortinbras by flipping a switch. All of these brains and bodies have the same self, according to to Reid, because they share the same memories. But, according to Leibniz’s law, this cannot be. The Identity of Indiscernibles claims that for anything, x, and anything, y, x is identical to y if and only if for any property x has,

To start, Reid’s theory refutes Hume, for personal identity is needed in order for humans to reason. there needs to be a “self” that can reason from argument to argument, premises to conclusions. Basically, if we did not have identity, the philosophy would be impossible. This is why Reid says that identity too “simple and foundational” to explain, much to the disapproval of his critics. Basically, certainty is the tell-tale sign of human identity. Through our memories, which Reid said are the best way of proving personal identity, we can only be certain of internal versus external evidence. A person can only be certain that they remember their own experiences with certainty, and cannot be mistaken; for example when you see someone who resembles your friend in public, you can’t be certain they are your friend until you actually approach them. When it come to our experiences, however, we can be certain that they are our memories and experiences, and no one else’s. This evidence is shown and questioned in Dennett’s story in many places, especially with the split between Yorick and Hubert. This example has also been shown in the television show Star Trek: The Next Generation. In the episode Second Chances, Commander Riker gets involved in a transporter accident, where he