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This paper is an introduction to the volume as well as a reflection upon the concepts of meteor and meteorology. Atmospheric phenomena such as rain, fog, lightning etc. are here considered in a metaphorical meaning, and meteorology as a model of thinking. Meteorology invites to perceive in a different way, which questions frontiers and certitudes. Meteorology as a model of thinking takes the principle of random into account more than that of determinism in many research fields, such as economy, history, theory of evolution. This volume can be read as an open dialogue built upon this very model.