I remember watching a NGT documentary on Netflix, and he mentioned something abouto Photons and how the first ones, from the big bang, witnessed the big bang.
Or something about how when they are born, until they reach their destination, they see the birth and death of the universe. Would make for some sick go-pro footage i might add.
So in theory, if you could fold spacetime and "Beat" the photons in whatever direction they are heading, or just match their pace, you could look back into the universe and witness our universe be born.
Kind of like how if you instantly travel 65 million light years away, you could see earth be hit by an asteroid, killing the dinosaurs.
Also, i had this perspective in the back of my mind on the concept of death and what happens.
Once you die, your perception of time ends, so theoretically, the universe will end when you die, atleast from your perspective.
Since you aren't alive, then there is no concept of time, therefore, the universe you knew will simultaneously come to the end of its life span as you, yourself, die.
That's how i see it anyway.