Let's be honest though. Why did "positivism" grow as a movement?
The essential reason was to provide a "positive" basis for the human sciences. What does this mean? Well, it essentially means being able to argue from a non-disputable standpoint, right? From a standpoint which is "right".
Let's not kid ourselves. Positivism is a logical method to exclude argument (which is anathema to the dialectical method).
Positivism is what you can prove... really? It seems to me that positivism is a method which allows for that which you can prove... within the sphere of positivism. There's no creation here, there's no change... I always found it interesting that positivism grew at approximately the same time as Einstein was fucking with physics.
Was relativity discovered through experiment, conservatism and proof? No...