[FortunaMaximus]

What about personal bias? He may, as an individual, be trying to find something bigger than his own mortality, which is something fairly common in human nature. Financial motivation isn't enough to discount the possibility he has a bias. Scientific bias is unique in that it demands very high standards of proof and faith isn't enough.

In science, the distinction between mind and body is an issue that's been debated for the ages. To date, there's been no solution, only speculation and conjecture. And I tend to think the answer will come through science, whether it finds its own solution or confirms what faith and religion hopes for.

And it's the early 21st century and medical science and neurology has only become more developed in the past half century or so.

I'm dubious, but enjoy the read. Perhaps there'll be a confirmed solution to this riddle in decades or centuries, but certainly it doesn't sound as if he's found the answer.