This sort of thing seems to be something that the die-hard fundamentalists cling to. They are passionate and committed wholly to their faith, that they cannot perceive any other way. And they take their blind faith and passion and ascribe it to science, treating it as any other religion.
They can not be more wrong.
Science is the question to find a better answer than the one we currently have. And that answer is quite often 'I don't know'.
I don't know. A wonderful, fantastic answer. It drives us, it consumes us to find what what the real answer is. So to David, Radook, and 154, that is what scientists strive for. The answer to 'I don't know'. They want evidence, facts. things that can be seen, measured, felt.
To the religious, there is no 'I don't know'. There is only 'God'. What created the universe? 'God!' Where did we come from? GOD! What is lightning and thunder? God! What is over that next hill? GOD!
If that were the case, Humanity would still kbe cowering at the back of a cave while the witch doctor screamed that God is angry at us, and that is why the sky lights up and shakes.
But there were those who answered 'I don't know. Lets find out!'. And so we find out what is over that hill, beyond the ocean, what stars are made of. Where humans and all other life came from. How the universe began.
We still have to answer some things as 'I don't know'. What was there before the big bang? I don't know. But we may find out some day!
Even then, the answers may change. New evidence, new information, a new branch of mathematics. Science changes based on what we discover.
The problem with the author of the OP's video, is that he simply is not interested in the answer. In fact, he has his own personal answer. God. And nothing could possibly change that. He will throw away evidence, and manufacture other evidence out of whole cloth to fit his already built conclusion. He will mis-state, on purpose, what the science says in order to attempt to discredit it.
That leads us to Evolution. To be a little more specific, The Theory of Evolution by Natural Selection.
There is a great deal of evidence in favor of the theory to support the fact. We know life changes over time. There is no discounting that. The theory is the explanation on how, and why this occurs.
Will a dog ever give birth to something that is not a dog? In all probability, no. And the Theory of Evolution really doesn't state otherwise. Why? Because individuals do not evolve. Life is not pokemon. However, populations do evolve, and mainly over a very very very VERY great deal of time. Mutations occur within populations. Some harmful, some beneficial, and most neutral. The harmful ones will tend to be weeding out, and the beneficial ones will help the carriers of it spread their genes to the next generation.
Take a single population of dogs, for example. Split them up into two groups, and make sure they cannot interbreed. Place them into two differing environments, and give it oh.. lets say a 50 thousand generations. What will they look like? Will they be able to interbreed with each other? Good questions. And hard to speculate on. Chances are, however, they they would still superficially resemble the animals in generation 1, but the two new populations will be unable to inter breed with other, and may not even look like each other. They would be two different species, with a common ancestor, that would *no longer exist*.
The fossil record shows this. Genetics even shows this. This is the best answer we currently have to the question of 'How did life become so diverse?'
And yet, this could all be undone tomorrow. A scientist could have new evidence that what we know is in fact, not true. This evidence will be studied, and examined, and if indeed factual, a new theory will be written, or the existing theory will be altered. Science marches on.
There are many many branches of science. Some related, some not. Abiogenesis, for example, is related to Evolution, for example. But they do not rely on each other. While we now know the answer as to how life became so diverse, we are not quite so certain on where life began. But we've got some pretty good ideas and potential answers!
Same with the Big Bang. We know the Universe began from a single point. How big was it? What did it contain? What was there before the big bang? I don't know. But I can't wait to see the answers that are found!
Sadly, however, out there, the witch doctors are still screaming that we're going to die, because the thunder means that the gods are angry.