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Let's say the surface of this water

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represents our universe

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Everything we can see and touch and feel 
represent it right here

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on the surface. And let's say this is us.

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Notice that we are stuck on the surface

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of this water.

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So we cannot leave our universe.

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That's us floating on the fabric of space 
and time

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However, there could be another universe

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located at the bottom of this water.

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What we need is a bridge connecting 2 universes.

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Most physicists believe that nature allows 
parallel universes

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to exist just like 2 separated planes of 
water

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But is there a way to connect 2 planes

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that are completely isolated from one another?

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Water can be distorted into a whirlpool

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that connects the top and the bottom.

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Physicists like Michio have discovered that

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just like a whirlpool, space itself

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can bend and distort to form a pathway

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between 2 parallel universes.

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A pathway known as a wormhole.

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Now wormhole is a portal

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that allows you to back and forth between 
2 worlds.

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But they are potentially unstable.

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To stabilize that we need a new substance 
called

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negative energy.

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Just like an oil-based solution pushes apart 
water

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negative energy would push apart space itself.

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You see, this negative energy is anti-gravitational.

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Positive energy wants to collapse the hole.

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Negative energy wants to keep it afloat.

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However, with enough negative energy,

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you may be able to go right through the wormhole.

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Our entire civilization could move from one 
universe

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to another through a wormhole