Correlation does not equal causation.
There's an extremely strong correlation between US spending on science, space, and technology and suicides by hanging, strangulation, and suffocation. The correlation is a 99.8% fit. But this means absolutely nothing whatsoever. There are some 30,000 various correlations available here [2]. You'll find many, such as the one I mentioned, are incredibly strong fits. But that's really the danger of data. Just because something fits, doesn't mean anything. The entire process of science is about discovering causation. Correlations mean nothing without clear causation. Even correlations that make sense mean nothing without causation. For instance, I'm sure you'd agree that US spending on science has pretty much nothing to do with suicides by hanging. So it's easy to see it's spurious. What if instead that correlation was e.g. an increase in enrollment in STEM degrees being pursued? Again, you should assume this correlation is spurious until you have a very compelling reason, certainly beyond bias confirmation, to do otherwise.
[1] - http://www.nationalacademies.org/hmd/Reports/2011/Adverse-Ef...