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La politique, c’est comme un sport, 

au rugby tu plaques, 

à la boxe tu boxes, 

tu n’en veux pas à ton adversaire de t’avoir mis un coup de poing, 

ça fait partie du jeu. 

 (Gaspar Gantzer)

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The Weber s Law

Weber states that, "the minimum increase of stimulus which will produce a perceptible increase of sensation is proportional to the pre-existent stimulus," while Fechner's law is an inference from Weber's law (with additional assumptions) which states that the intensity of our sensation increases as the logarithm of an increase in energy rather than as rapidly as the increase

An illustration of the Weber–Fechner law. 

On each side, the lower square contains 10 more dots than the upper one. 

However the perception is different

On the left side, the difference between upper and lower square is clearly visible. 

 On the right side, the two squares look almost the same.

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