What is nothing?

I figure that due to the fact that all of our thoughts, emotions, and memory are just electronic signals it is quite possible that we are all just computer programs in some unconscious supercomputer that is really everything that ever has, ever will, and does exist. Nothingness is just a glitch in this supercomputer. Our individuality is, although it seems to be in our full control more likely than not has been planned out for an infinite amount of time. Time as I see it is just the human perception of events transpiring around us, and as such since we are all programs in this super computer which has existed for an infinite amount of time and will always continue to exist even long after all the matter and energy is gone from our universe must have something above it, otherwise it would have no perception of time. Without its perception of time we would have no perception of time and thus would create a paradox. There is an infinite loop of these supercomputers looped together in a subnet that stretched though out all dimensions of space, time, and all the other random crap we have yet to discover within our corner of the subnet. But what exists beyond it all? Anything? Infinity is a great great number but nothing is truly infinite, there must be a single point from which it all began. What is this single point, what we could possibly call nothingness?

It's been proven that the world today isn't sharp. That means you cannot compute, even with the highest calculations in the world, how the world is going to be. Thus, for us humans (as of right now), the world isn't predetermined. It doesn't matter whether the world is in fact predetermined or not, because we're unable to calculate and find out if it actually is.

That's the first thing. The second thing, we haven't existed for an infinite amount of time. We existed since Big Bang.

And really, you cannot say that our life is "planned out" by a supercomputer, as a supercomputer can't think. (Saying computers can think is like saying that submarines can swim.) Besides, humans made the concept computer. And the computer has tons of limitations. A way of actually saying that the world is a lot of threads and processes within a supercomputer, means that someone made that computer and ordered it to do this and that. If that is true, then the thing or being which made this computer is our ***, which collides with your belief.

Nothingness is a concept made by mathematicians, and will never exist in our world:

Fire up the time machine. Our walk in the park took place more than two thousand years ago, on a beautiful sunny day of a long forgotten spring in 380 B.C. Outside the city walls of Athens, under the pleasant shade of olive trees Plato was walking towards the Academy with a beautiful slave boy. The weather was lovely, the dinner was filling, and the conversation turned to philosophy.

"Look at these two students", said Plato carefully picking words to make the question educational. "Who do you think is taller?" The slave boy looked towards the basin of water where two men were standing. "They're about the same height", he said. "What do you mean 'about the same'?", asked Plato. "Well, they look the same from here but I'm sure if I were to get closer I'd see that there is some difference."

Plato smiled. He was leading the boy in the right direction. "So you would say that there is nothing perfectly equal in our world?" After some thinking the boy replied: "I don't think so. Everything is at least a little different, even if we can't see it." The point hit home! "Then if nothing is perfectly equal in this world, how do you think you understand the concept of 'perfect' equality?" The slave boy looked puzzled. "I don't know", he replied.

So was born the first attempt to understand the nature of mathematics. Plato suggested that everything in our world is just an approximation of perfection. He also realized that we understand the concept of perfection even though we never encountered it. He came to conclusion that perfect mathematical forms must live in another world and that we somehow know about them by having a connection to that "alternative" universe. It's fairly clear that there is no perfect circle that we can observe. But we also understand what a perfect circle is and can describe it via equations. What is mathematics, then? Why is the universe described with mathematical laws? Can all of the phenomena of our universe be described by mathematics?

Thus the example holyforest came up with turns out to be false as well: A universal vacuum will consist of radiation, a ton of temporarily existing particles, black matter, photons, etc.

tl;dr Nature's imagination is far greater than mankind's imagination.