Universe or Multiverse..?

Are we living in a universe or Multiverse..?

When I was stuck upon this question, the first thing which came to my mind was Einstein’s space – time relativity. Space and time are related. Similarly energy and matter. And ultimately binding all the massive objects via gravitational force. So it was like finding unity in the entire complexity, making all of them related in one way or the other.

We need to make the entire stuffs simple and related in this cosmos, in order to avoid the muddles if the things couldn’t be interpreted. We needed a single rhythm, hence it was universe.

After all, we humans only called it a universe while it could be a multi rhythmic cosmos in reality. In that multi rhythmic cosmos, there couldn’t be any relation between energy and mass. Nothing related, everything has it’s own laws and conditions, a real multiverse.

But google gave me a different answer, it showed me multiverse as the opposite of universe, i.e. many universe. It is said that at the time of big bang, some portions of universe expanded faster giving rise to another universes, functioning with different laws of physics..

If it is a multiverse, will the siblings be colliding each other.. who knows..?

Anyway, the existence of multiverse wont have any impacts on our day to day concerns. So let me take a deep breathe.. But I donno if it was sigh of relief or discomfort.