But a submarine doing what a submarine does is a tautology. What people are really grasping at is can a machine be human? And pinning down what it means to be h

But a submarine doing what a submarine does is a tautology. What people are really grasping at is can a machine be human? And pinning down what it means to be human seems very important to ruminate on. Can machines think? Cogito, ergo sum...