In Defence of Strong AI: The Modal Argument Refuted

In this video, philosopher and Christain theologian Alvin Plantinga outlines his modal argument, which in my view successfully establishes that he is not identical with his brain or body.

He interprets this to mean that he is something more than physical, and presumably that he has a soul. Physicalism refuted? Nope!

Essential identity: Meet your future selves

While discussing my ideas about identity with a friend, it became apparent that I hadn't delved sufficiently deeply into the existential consequences of cloning yourself body and mind. This friend appeared to agree with me on most of what I had written, but when I proposed a new thought experiment to him, he came to very different conclusions to me.

The thought experiment is simple enough, and asks whether you have any interest in the welfare of your clone should you clone yourself.

Essential identity: The essence of essence

It seems that we cannot tie the identity of a person to their physical characteristics or to the atoms that make up their bodies. The former cannot be true because we regard physically identical individuals to be distinct people. The latter cannot be true because these atoms are recycled constantly.

It seems identity of people and things may be bound up in some sort of non-physical mystical "essence". If this were not so, Christopher Walken could have just bought another watch for Bruce Willis.