Hence, the fact that one event follows another does not necessarily mean there is a causal relationship between them. One of the main philosophical concerns is to warn people not to jump to conclusions. Guinea pig be strong be brave be humble be badass poster. In fact, it can lead to many different types of superstition. How? I saw a black cat running across the street. Then that day I fell and broke my arm. But that does not mean there exists a causal relationship between the two events. In science, it is especially important not to jump to conclusions.