There's more to the beginning of the universe than a loud noise

2) The Inflation

In less than an instant, the hyper-dense speck of a universe inflated from a size smaller than a proton into something just slightly larger than a watermelon (this doesn’t neccesearily mean that there is something cosmically siginificant about watermelons). Nevertheless, it was a magical transformation. The rush of this exponential expansion also caused it to get slightly less incredibly hot, but only for a moment.

After the universe had scaled up to the equivalent dimensions of a succulent fruit, it took a short pause. The inflation was over, but there was a tremendous amount of spare energy that found it could do no more inflating. So the energy turned inwards and made the transformed universe hotter than it had ever been before, or has been since, or ever will be.

If you break up matter you get a release of energy. For example, when you burn a log (which is made of matter), heat (which is a form of energy) is given out. Since energy can be released from matter, it follows that matter can be made from energy, if there is enough of it. It was the incredible energy at the end of inflation that crystallised, condensed, and gave birth to the first constituents of matter, and thus created the fundamental building blocks of everything we know.

Next: The Inflation