Alright. ToE part 3.
The first two parts are not very controversial. Part 1 is really pretty obvious, once you understand it. Part two is a natural extrapolation. Part 3 is the reason we regard Darwin as a great scientist. It is the controversial part. It's what you would really call the Theory of Evolution, meaning an explanatory framework that brings together all known observations in one single coherent explanation. It's this:
The process I described accounts for every organsism on earth. That all of the plants, animals, bugs, bacteria, fungi, etc., each and every one, evolved from a previously existing organism by the process I described, and therefore they all descended from a single common ancestor over billions of years. This is a huge, audacious statement. As I have time (probably more tomorrow) I will sketch an abbreviated outline of some of the evidence that supports this theory. First I wanted to make sure that you understand it. Do you?