[di4na]

Because science does not works by a "scientific method". It work with some really simple things :

- Be sceptical

- Believe the data

- Keep asking questions.

All the rest is just fluff. Most of the time you have experiments before hypothesis. Or an intuition that only match part of it. Or publish some food for though and it will only be proved to be false hundreds of years later. The whole "hypothesis -> experiment -> theory" miss so many things.

From the french wikipedia entry

Très souvent, le terme de « méthode » engage l'idée implicite de son unicité, tant auprès du grand public que de certains chercheurs, qui de surcroît la confondent parfois avec la seule méthode hypothético-déductive. L'étude des pratiques des chercheurs révèle cependant une si grande diversité de démarches et de disciplines scientifiques que l'idée d'une unité de la méthode est rendue très problématique.

Quick and bad translation :

Most of the time, the term "method" push the implicit idea of unicity, to some scientists but also to the public, who also reduce it to the solely "hypothetico-deductive" method. The study of scientists practices reveal a so big diverity of method and scientific fields that the idea of an unicity of the method is highly problematic.