will turn something very simple into something convoluted [hopefully my model is bogus]. Theoretical models make predictions how stuff behaves in nature. For instance general relativity would predict that all elliptical orbits naturally precess [past-present-and future]. It doesn't matter that some precession was measured in elliptical orbits prior to the publication of general relativity. Theoretical models also make predictions about stuff that hasn't been measured, such as frame dragging. Soon there will be an experiment to test this prediction. Sometimes it takes awhile for technology to catch up with theory. Theoretical models which don't make any predictions are not testable and basically useless for doing scientific research.

• Bruce... - dolphin - April 6, 2003 - 00:12 UTC