Interesting to know that this world is not the only one. Scientists now believe there may really be a parallel universe - in fact, there may be an infinite number of parallel universes, and we just happen to live in one of them. These other universes contain space, time and strange forms of exotic matter. Some of them may even contain you, in a slightly different form. Astonishingly, scientists believe that these parallel universes exist less than one millimetre away from us. In fact, our gravity is just a weak signal leaking out of another universe into ours.

It all started when superstring theory, hyperspace and dark matter made physicists realise that the three dimensions we thought described the Universe weren't enough. There are actually 11 dimensions. By the time they had finished they'd come to the conclusion that our Universe is just one bubble among an infinite number of membranous bubbles which ripple as they wobble through the eleventh dimension.

Alongside comes the idea that these "parallel universes" can be human-created computer worlds, like Second Life or Counter-Strike. According to the scientists, even book and film heroes "live" in these book and film worlds "led by the godlike imagination of their creators - writers and film directors". Remember "Last Action Hero" with Arnold Schwarzenegger, when a boy came into the film world and acted like a hero?

Scientists are right. There are countless worlds we live and even more we can't imagine, but somehow can influence them. We CAN create them!