So if it's not survival of the fittest individual and it's not survival of the fittest group, then what is it? The Beginning Life Well, to explain that, I want to take you on a little journey, all the way back to the beginnings of the Earth. Where we are now, there is nothing. Well, not really nothing, but nothing interesting. There are only simple things, like these blobs. This one might be a carbon dioxide molecule, or it might be cyanide. We don't know for sure what they are, but we do know that these compounds are very simple. So for now, they'll just be blobs floating around our void. In fact, much of what we'll encounter along our journey here are just hypotheses. A lot of Earth's early history is still a mystery, so keep that in mind. Now, every so often, our blobs get a surplus of energy, maybe from a ray of UV light or a nearby hot source. This is the first major upgrade to our void, excess energy, as it allows our blobs to interact with each other....