Control of smooth muscle cell activation.

We have learned from Thomas Kuhn that during periods of “ordinary” science, observations and facts accumulate, conferring upon a given problem an increasing degree of complexity, up to the moment that a scientific revolution opens a new horizon and brings back more simplicity.1 Before these revolutions take place, scientists strongly experience the need for placing some order in a field that becomes more and more complicated. A certain proportion of the “ordinary” scientists feel irritated by their colleagues who contribute to the accumulation of new facts thus increasing complexity, which in some instances they call “confusion.”