the time travel paradox—the plausibility of changing our past—appears to be unmanageable simply because it clashes with our thought of ourselves as creatures with through and through freedom.
The Earth may appear to be a powerful spot, yet it's basically a grain inside a grain of sand in a universe that is evaluated to contain more than 200 billion galaxies. That is something to consider whenever you pay attention to life as well.
The Universe Is Made of Tiny Bubbles Containing Mini-Universes, Scientists Say A constant cosmological riddle has been disturbing physicists since 1917: what is the universe made of?