Circumstances change, and so can you. Positive feedback loops, adding effect to effect, can spiral counterproductively in a negative direction, but can also work to get you ahead. That’s the other, far more optimistic lesson of Price’s law and the Pareto distribution: those who start to have will probably get more. Some of these upwardly moving loops can occur in your own private, subjective space. Alterations in body language offer an important example. If you are asked by a researcher to move your facial muscles, one at a time, into a position that would look sad to an observer, you will
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