jdent, please read up on what a scientific theory is.
Have a look
here for an explanation.
Evolution is a lot more than what most people think of a theory. It is a scientific theory.
Quote:
In science, a body of descriptions of knowledge is usually only called a theory once it has a firm empirical basis. That is, it:
1) is consistent with pre-existing theory to the extent that the pre-existing theory was experimentally verified, though it will often show pre-existing theory to be wrong in an exact sense;
2) is supported by many strands of evidence rather than a single foundation, ensuring that it is probably a good approximation, if not totally correct;
3) makes predictions that might someday be used to disprove the theory;
4) is tentative, correctable and dynamic, in allowing for changes to be made as new data is discovered, rather than asserting certainty, and
5) is the most parsimonious explanation, sparing in proposed entities or explanations, commonly referred to as passing the Ockham's razor test.
|
It's not just a guess.