Comment by srean

He did have a very long life, so there's that.

It's not easy to separate cause and effect from direct and strong correlations that we experience.

The job of a scientist is not to give up on a hunch with a flippant "correlation is not causation" but pursue such hunches to prove it this way or that (that is, prove it or disprove it). It's human to lean a certain way about what could be true.