You're too much!
You've highlighted the word "experiments" because of your insistence that anything not involving recreating something in a laboratory is "guesswork".
What's the full phrase?
"hypotheses or experiments that can be tested"
A little education can be a dangerous thing…especially in the hands of someone as dogmatic as this person appears to be. So orbital dynamics on the scale of planets is also just supposition?
Dr. Gee isn't saying what you think he says. His point in that excerpt is that proposed explanations for patterns in earth history must make *testable predictions* in order to be evaluated, and are just-so stories otherwise.
Again, I refer you back to the end-K ammonites.