Imagine that suddenly our world has turned to a . Assume that all the living beings have turned in to simple shapes(for understanding the concept clearly). And you've turned into a triangle.
You completely forgot what is. It's been since your existence in this new world, everything seems very normal for you. You've been meeting other shapes everyday and everything is normal.
One fine day, you see a meteor in the night sky which falls before you. You go closer and find that it's not a meteor at all, but it's a sphere. But as you've forgotten all about , you treat it as a circle only.
But, something from your hearts suggests that it's not a sphere. Suddenly, the sphere comes alive. It tells you what is. You understand the difference between, both the worlds. The new dimension , has created a completely abnormal world.
So, we can conclude that we cannot say that "a doesn't exist. Though it may seem impossible, we have got to accept it. As in the story, you can only understand the next dimension clearly, only if an object from that world comes to explain you what it actually is.
Physics claims that there are ! we only experience three spatial dimensions in our universe, when super string theory, for instance, claims that there are ten dimensions — nine spatial dimensions and a tenth dimension of time!
The only thing is that we are not able to perceive them. So here's the question, can an object living in a particular dimension see the next dimension? Or is it confined to the same dimension? If so why or why not?