We talk about “the Universe” as if we know there’s just one. The fact is that we know no such thing.
Of course it was less than 100 years ago that we believed that the milky way was the extent of our universe.
If there is another universe could we see it from here? And how do we know its not just a giant mirror?
Our Universe is because two Universes ran into each other on the edges. One positive, one negative. Why do you think there is good and evil...... String theory is very real. We are electromagnetic in nature.... Why do the heart beat? Electric......