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That is cute, but wrong. Data is gained from measurement, not conclusion. Without data gathering, from experiment, the rest of the method is worthless. Observation is a beginning. Study is to gain background to create a hypothesis. experiment is the crucial bit, and without it there can be no conclusion as to the validity of the hypothesis. Please go back and study Descartes again.

Natural philosophy is what became physics. Forget Descartes, go look up what words mean, then learn philosophy, the Trivium, and the scientific method.

Is that a serious question? If so, see the previous comment.