I realized that if there's another life after death that we would know it immediately.

[Ambivalent1]

We can't be aware of nothingness so even if a million yrs were to pass, it'd be instantaneous from our perspective.

 

[Praestat_Mori]

It's an interesting thought. Nothing scientific here, just my thoughts. If we assume that "consciousness" just leaves our body when we die and exists as a form of energy or sth like that and re-unites with the quantum vacuum energy, the "soul" would float through space with light speed. The interesting fact is that for anything that travels with light speed the time-dimension disappears - there's no time anymore. All those questions about eternity / nothingness are becoming obsolete

 

[unusally alive]

Look up "Quantum Immortality"