The existence of parallel universe, what science says!!

The term parallel universe is very familiar to us. Many of us use this phrase frequently. For example: You are told 'You read very well'. And you gave the opposite answer 'In parallel universe'. But what is the parallel universe thing? How much do we know about this? Let's find out.

Generally speaking there are parallel universes like our universe somewhere in this vast universe. Where there is a solar system like ours and a blue planet called Earth, there is another you who looks just like you. But there everything is opposite to us. Eg: In our world you see global warming increasing day by day, but there global warming may be decreasing. It's like that. However, the existence of parallel universes is highly disputed.

About 13.7 billion years ago, everything in the universe came together in a singularity. According to the Big Bang theory, it exploded in a very short period of time and the fragments began to separate and move away from each other. In just 10^-32 seconds, the universe grew 10^26 times larger than its original size after the Big Bang, and this growth/expansion continues. This cosmic phenomenon is called cosmic inflation. Then slowly everything started to build. From this cosmic inflation, scientists get the idea of multiple universes, because inflation has not stopped in many places! As a result, when inflation ends, a new universe is created.

But the question is whether we will ever reach another universe?

We know that the expansion of the universe is infinite and its speed is too high for us to exceed. So even if we reach the end of our universe, we cannot reach another universe. Because the universes are moving away from us due to infinite and rapid expansion. However, the possibility cannot be completely ruled out. If we can ever travel faster than the speed of light, maybe we'll reach another universe!

But the environment there will be completely different. So whether we can survive there is also an important issue.

There are many discussions and arguments for and against the multiverse as well. Some claim cosmic inflation and that there may be multiple universes relative to our universe. Someone else claims that since we cannot see multiple universes with our own eyes, the multiverse theory solves a paradox rather than increases the problem or there is no evidence for the multiverse! So it is better not to take the multiverse theory in mind.

But would it be very pleasant to see yourself in another universe? What do you think?