As scientists, IPNI encourages farmers and advisers to seek out evidence when assessing options such as new fertilizer products or formulations. In a presentation, a graph or table may be shown with a comment like "....it is clear from this that...." and proceed to describe how the data supports the argument or point to be made. But the truth is not always that clear. We are all very good at fitting patterns to the things we see to fit them into the scheme of things we understand-or think we understand. In fact the human mind is very adept at pattern recognition-just think how subtle are the differences in the faces we pass in the street-but how clearly we can recognize a friend when they appear.
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