Your sink is leaking all over your bathroom floor. Whose advice do you take on how to fix it - your plumber's or your accountant's? I suspect that the sane among us would typically go to the plumber. If we were suspicious about the first plumber's advice, we'd probably call another plumber. Similarly, the rational among us would not look to a plumber as a source for informed commentary on the economy, foreign affairs, or journalism.
We understand that expertise matters.
We don't consider experts to be infallible, we don't bow down and worship at their feet, or uncritically accept everything that every expert says, but we understand the importance of knowledge and experience. Experts are not born, they're made through a long process that involves spending enormous amounts of time and effort to study a field. It's been suggested that it takes a minimum of 10,000 hours to gain expertise in a field, and that's not a bad lowball estimate for a lot of fields.
There are many fields, though, where 10,000 hours is not enough training to be considered an expert. That much time and effort might be enough for people to consider you to be competent, but only just.
Take medicine, for example. Residency is an enormously intense period of training - most programs officially limit interns and residents to 80 hour work weeks, but in a lot of places that's treated the way most people treat speed limits. Even if you assume that residents only average 70 hours a week, the vast majority of doctors will have worked for far more than 10,000 hours before they sit for board certification exams. The intern who sees you on his or her first day on the job has probably spent at least four or five thousand hours on clinical rotations as a med student.
Want to get a Ph.D in any of the sciences? After you're done with your undergrad, you should plan on spending at least five years in grad school. After that, plan on spending another few years as a postdoc before you even think about applying for a tenure track Assistant Professor job somewhere.
With that in mind, I'd like to share the source of my current irritation with you.
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