After seeing a magnificent entrance to Peter in his blog on our situation in the universe / multiverse , I would like to explain a little what I could understand that is the theory of evolution ( also called the Theory of Natural Selection and Darwinian theory), I consider it a fundamental part of human knowledge and clearing A big unknowns.
This theory has been said (although it has been said of General Relativity Theory of Einstein) that is the greatest idea ever has been created by one person.
seems almost joke that with the observation of phenomena was exposed to Darwin could develop this theory (especially, still far from comprehensive genetic knowledge we have today, where the theory comes true sense)
Before, I would like to clarify that scientific vocabulary, a theory is a theoretical model used to explain reality. And the reality, also in scientific vocabulary is that with which we interact. As a model, this means you can explain / describe reality, but only to a point, and also the predictable, but only to some extent. The first is called limits of the theory, the latter, error of the theory. We must also say that Law and Theory are synonyms in the scientific vocabulary. In short, when we Theory of Evolution, we are not thinking it's a guess or something not totally proven or someone's crazy idea that someone else will have to try: scientific truth is at its best (and know what I mean by scientific truth, his is read Popper)
Well, we started at the beginning. The earth is full of living beings. Some are big, small, tall, short, green, red, yellow, horns, feathers, flowers and roots, with cilia and that "breathe" sulfur. And many more. Living things are "objects" or "things" highly complex. For there is a snail, for example, millions of components, each already in itself a very complex thing, working together for a common good (we'll see which is the good). If a fraction of those components do not do what he does, the shell (or dog, or coriander, or the bacteria that creates yogurt, or whatever) would not exist. Another way of saying that there is a complex object that is to say that the probability of its existence is very low. And this is the same as saying that if only chance is involved in a process will be very difficult, almost impossible, that there are complex things. However
... back to the beginning: The Earth is full of living beings.
continue ...
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