Rubbish. Are you a creationist?
Athiest-evolutionist actually.
You go off and study up on some logic. I'm going to drive home on the road my taxes helped pay for and maintain.
Science is united by its use of logic and deductive reasoning. It remains objective and formally governed by the principle that an argument based on true premises cannot yield a false conclusion.
It is, of course, possible to derive true conclusions from false premises. To give a simple example, we may say that pigs are birds, birds cannot fly, and hence pigs cannot fly. However, positivists in the economics profession have asserted that such derivations are the most common and useful method of inference employed by the natural sciences. In this, they are entirely wrong.
In the dispute between the once-supreme caloric theory, and the nascent kinetic theory, both sides claimed to have the correct explanation for the phenomenon of heat. The caloric theory claimed heat and combustion were caused by the emanation of a substance known as "caloric" from hot bodies. The kinetic theory claimed that there was a mechanical equivalence of heat and work, so that both are simply different forms of each other — later labeled "energy" by Thomas Young in 1807.
In this particular case, we are faced with the typical situation in the natural sciences: we cannot directly establish the truth of our premises. However, we may deductively infer the consequences following from either theory.
If either of these theories yields conclusions that can be shown to be false, then they are themselves falsified. This follows since from a true premise, only true conclusions can follow. Hence, if a conclusion following from a premise is shown to be false, the premise itself must be false as well and hence can be discarded.
The caloric theory was decisively rejected by Count Benjamin Rumford in 1798. He demonstrated via the friction induced by boring a hole in a cannon that one could heat water for hours and hours, just as long as the hole is bored.
What we have seen here is that we have been able to rule out one proposition by demonstrating its conclusions to be false.
It should be clear to the reader now that to explain the scientific method of inference as a way of producing knowledge from false premises is patently absurd. The entire point of the scientific method is to rule out premises that are contradicted by observations. It has never meant beginning with premises you know to be false and absurd, tracing out whatever implications you can draw from there, and, when circumstantially finding congruence with your "predictions" and observed data, asserting the result of your machinations as "scientific knowledge."
The reader should now be able to note just how shaky and peculiar the methodological stance of positivist, or rather "positive," economics actually is. In Friedman's essay, "The Methodology of Positive Economics," he defends deriving consequences from clearly false premises with regard to the study of human action. He aptly states that hypotheses are not required to be "realistic" in their assumptions.
From Mises.org
http://mises.org/daily/4061 "Why Friedman Misunderstood Physics and Mises Was Right about Economics"