Time is relative or fractal in nature. The existence of mankind can be said to be very old; it can also be said to have occured in an flash of a moment of all life on Earth. Life on earth can, likewise, be said to have happened in an instant of our young observable universe. You could then say that our enitire universe happens in an instant. Space and time are so closely connected and are really space-time, so it follows that space is also fractal and if you take a look at our universe at the scale of a particle it makes sense that our universe might have come into existence ex nihilo. The reason being that we know this occurs in empty space in our universe. Empty space is constituted of quantum vacuum fluctuations. Particle anti-particle pairs pop in and out of existence instantaneously. It's been posited before that our universe may be located in a virtual particle that will end when it meets it's anti-particle and annihilates. I think it's plausible to posit the idea that our universe is one of many virtual particles in the empty space of another universe and that universe is in the empty space of another universe, ad infinitum. An infinite regress of fractal universes constantly in and out of nothing. Fluctuating as a pattern in an infinite quantum vacuum. Where everything that can possibly exist exists an infinite amount of times and doesn't exist and infinite amount of times in an infinite number of variations. And everything exists forever in it's particular point in time. So our observable universe would be a finite part of an infinite universe, relatively speaking. How plausible do you think something like this is? Are you confortable with infinite regresses? If not, why?