[Athena]

More then one universe.

Scienceline » What existed before the Big Bang? Armed with string theory, Kaku and others speculate that before our Big Bang, there were simply more universes. “Our universe could have either popped into existence or collided with another universe,” he says. Imagine a bubble bath where each bubble represents a universe. In this multiversal tub that existed before our Big Bang—and still exists today—universe bubbles are colliding, popping, budding new bubbles, expanding and contracting. If this scenario really exists, “Big Bangs happen all the time,” says Kaku. Some physicists believe our universe was created by colliding with another, but Kaku says it also may have sprung from nothing: a completely empty eleven dimensional universe with no spin, no charge and no energy. This seemingly tranquil nothingness universe was actually unstable and some physicists believe that a fluctuation in the vacuum caused our universe to pinch off from its empty existence without time and space to a universe that was large enough to expand. Like a bubble in a bath, our universe had to grow instantaneously in order to survive and escape the collapsing fate of small bubbles. This “quantum leap” involved four of the dimensions of the empty universe, which now frame the universe we live in. Expanding suddenly, this event sparked the Big Bang and caused the further expansion which created matter and continues to push the galaxies apart today. Meanwhile, the seven remaining dimensions shrunk to an almost inconceivable size, much smaller than an atom.