In the case of the ToE and OE there is no opportunity to test an interpretation because it's all about one-time events in the distant past.
Nonsense, geologists are always looking for independent verification of an hypothesis. There are many ways of doing this. One would be radiometric dating. Another would be fulfillment of a prediction. Another form of evidence might be isotopic. You are blowing smoke here. I remember a course in which my professor tested by asking what lines of evidence would support a statement. It appears that you could use such a course.
It may seem very reasonable from the evidence, from a certain appearance of a rock, say, to guess that it went through the stresses of mountain building or started life on a sea shore millions of years ago, but since ALL you have is your guess about this one time ancient event, it should never be called fact.
Perhaps you have a different definition of 'guess' than most of us. But when evidence corroborates a hypothesis it is considered more than a coincidence. In fact, we then test the hypothesis further by actually treating it as a fact (a premise). If it is wrong, we will shortly know. The point is that despite what you say we do test ideas and they are, by definition, not simple guesses.
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