Comment Re:Pull your head out (Score 1) 665
A scientific theory usually have a set of predictions beyond the initial claims that are testable, event if not visible phenomena or directly measured properties. What I described in the example of the Big Bang Theory is precisely testing a scientific theory, as the expected background radiation IS one of the predictions.
If your standard for any scientific theory is based on repeating an experiment or directly visualizing some effect, most of the science of the last 2 hundred centuries is indeed untested, as most of its results are not directly visible, but tested by mesasureable effects. Event relatively simple properties of materials, such as eletronic currents visible, and as such measured through indirect effects, for example, old ammeters using magnetic fields to measure the value of said electronic current, instead of counting the amount of electrons passing per second on a conductor.