Originally Posted by
Seattle Forrest
But that manufacturer can say this widget will last 20,000 miles because they've built a million identical ones, tested a bunch of them, and heard reports from their customers. People aren't identical like that. What would it even mean to say your heart was "capable of" X beats if you had died before it got to that number?
Exactly, even if some holy deity told us that it was true, there would be no way to prove it. No two people are the same so you couldn't exactly duplicate the experiment.