"You have to fear death to reason about the world and how to behave in it." You're onto something there. If everyone knew they were to die tomorrow, all of a

"You have to fear death to reason about the world and how to behave in it." You're onto something there. If everyone knew they were to die tomorrow, all of a sudden they'd choose to act differently. There is no logical thought process that determines that - it's something else. Something we can't concretely point toward as an object.