I don't know. That's why I have to find out how to measure it properly. A sort of ... soul meter, I suppose. I do know that the brqin survives the heart stopping and being deprived of oxygen for longer than people think, and the consciousness resides in the head, even after it's been completely chopped off, for at least a minute. [explains, hands gesturing briefly in the air, starting to become more animated as he talks about his very favorite subject]