[SteveA]

Here's another wierd thought: Anything traveling at the speed of light doesn't experience time passing (is this true of all forms of energy?). Light (photons) don't age. Matter and energy are indestructible as far as I know, they can only be transformed one into the other.

If we experience time as matter, but the spirit part of us is energy, we could travel as energy without experiencing time, only to awake in some other form of matter later.

I've heard it said a black hole doesn't have a "memory" of what matter has fallen into it (though this has been debated), it simply has a quantity of energy (partly expressed as a rotation), so if energy has no memory of the matter it was composed of prior to being converted into energy, that could sort of explain why people have no recollection of where/what they were prior to being alive.

This is just random stuff, off the cuff, but interesting to think about.