Question

what is the theory of multiverse?

Answer 1

the multiverse is a theory in which our universe is not the only one,but  states that many universes exsist parallel to each other.these are also called parallel universes

Answer 2

$\huge \bf \red{ \mid{ \overline{ \underline{ANSWER}}} \mid}$

let me make uh understand what multiverse actually is!!

→ multiverse is the collection of universes .

there is an idea that there is more than one universe hence the collection of universes called multiverse.

$\bf{→ \: my \: idea \: on \: multiverse}$

before I start I just wanna ask a question !

what was there before big bang?

if ur answer is nothing,

then tell me how big bang occurred and there should be a space in which it occured .

for big bang it needs energy and hence my idea is that big bang occurred in multiverse like other universes.