Science is stranger than fiction. It abounds with theories which seem impossible to regular minds like you and me. Ever imagined a world where NIT is better than IIT? Where India is free of corruption? Where the US doesn’t play big brother? Where the sun rises in the west and penguins live on the North Pole? Think parallel universes.

The multiverse (or meta-universe) is the hypothetical set of infinite or finite possible universes that together comprise everything that exists and can exist: the entirety of space, time, matter and energy as well as the physical laws and constants that describe them. Multiple universes have been hypothesized in cosmology, physics, astronomy, religion, philosophy, transpersonal psychology and fiction. In these contexts, parallel universes are also called “alternate universes”, “quantum universes”, “parallel dimensions” and “alternate realities” among others. Suppose a die containing six sides is thrown. All six possible ways the die can fall correspond to six different universes. So maybe in an alternate universe Lionel Messi is Indian. But maybe in another, Sachin Tendulkar is Pakistani. OMG!

Done with these universes? Up for time travel?  Simple. Just find a wormhole. Yes, seriously. A wormhole. Not your average hole though. An Einstein-Rosen bridge. It is a hypothetical topological feature of space-time that would be, fundamentally, a “shortcut” through space-time. Consider space-time visualized as a two-dimensional (2D) surface (a sheet of paper for example). If this surface is folded along a third dimension, it allows one to picture a wormhole “bridge”. A wormhole is, in theory, much like a tunnel with two ends, each in separate points in space-time. There is no observational evidence for wormholes, but the theory of relativity proves its existence theoretically. So you wish to see Sachin make his debut? Or hear Martin Luther King deliver his epic speech? Or if you are a sadist, watch Hitler carry out the Holocaust? Just cross a wormhole bridge. Before you pack your bags though, one problem. The speed barrier. You need to travel at the speed of light. So if you can tweak your Ferrari a bit to travel at 300000000 m/s, then very well. Off you go! Happy Journey! (At your own risk. Didn’t I tell you? Wormhole bridges can collapse too)

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