Can you just take a look in 3 links then pick one of three question to discuss:

1) Why does Descartes conclude that he must exist? Aside from existing, what other attribute is Descartes certain he must possess? Why does he remain uncertain about whether he has the characteristics of nutrition and perception? What is Descartes' example of wax changing forms supposed to demonstrate?

2) Since we know that our brain is the physical cause of our thoughts, does this mean that we are wherever our brain is? How does Dennett's example of a brain in a vat complicate this? Does this mean that you are where your body is? What possible objections does Dennett raise to this idea? Is it better to think that we are in two places at once? What is problematic about thinking we are in more than one place at once?

3) Consider some of the twists that Dennett puts on his original scenario. Would it still be you if your brain was connected to a different body? Why do you think so? If a computer program was made that had the exact same thoughts and controlled your body in the exact same way, would this be you? If not, what is it about yourself that the computer program does not capture? If so, does this mean that there are two parts of yourself or would it be a single part with two different causes?