Another phenomenon is the 'discontinuous jump' in quantum physics. It's a metaphor. What it means is that, in the sub-automic level, sometimes an electron makes a jump from one orbit to another without using the intervening space. What does that mean on the emerging level that we see later? It means, creativity. Creativity happens because of this jump. In the Newtonian law, everything is continuous therefore, every thought is conditioned by its previous thought - a chain of thoughts if you will. But when an electron makes this jump, it does not follow any previous conditions or chain of thoughts. It then makes completely a new thought and creates something new. That's why the foundation of creativity is this discontinuous jump that is free of any previous conditions. This is also the main foundation of free will or this is where the true free will lies. All others are conditioned however, we do have choices to choose from. So one can't say you are absolutely conditioned and/or that we live in a determined world. Because of the choices we face every single time and we do choose differently because of our different upbringings and perspectives in life, it eliminates the concept of 'determined world'. For example, when you toss a coin, you don't know if you will get the heads or the tails even when there are only two alternatives. Therefore, the result is completely unknown. Life however offers more than just two alternatives - at least most times. Even so, you can see how we do not live in the determined world but a materialist will always try to convince you otherwise, even when it comes with all sorts of dogmas and paradoxes which basically makes it a pseudoscience. In other words, if there's a flaw in a theory, then that's a paradox and completely against what we call science.
This 'discontinuous jump' is now a fact and a very well established phenomenon in quantum physics.
The Big Bang, btw, is still a theory but it is one of the most established theories simply because there's enough data to back it up but still, there are some paradoxes that still makes it a theory and not a fact. And of course, a theory has to exist first which will be proven as a fact later through experiments and supporting data, or will be dismissed if it can't be experimented or doesn't have enough data to prove it otherwise.