Experts are no experts
In many fields, people who are widely accepted as "experts" are actually not expert performers when judged by objective criteria.
Anders Ericsson
In a famous California wine tasting competition the experts are given 30 wines to taste each member of the Jury. Robert Hodgson run an experiment and 3 glasses of the same wine were given to each. All gave different grades some of them gave the same wine from the same bottle 91, 87 and 87 points. No one was consistent.
If you are a brain surgeon or a plumber you are an expert otherwise disaster occurs immediately , if you are an expert economist, analyst, wine expert, phycologist (yes no different results from anyone without training) you can be an expert forever. Easy life.
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