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Of course. But my point wasn't that 'things that aren't professions are easy to learn about', it was that 'using the Internet IS easy to learn, and requires few resources.' The fact that using the human body isn't a profession is completely irrelevant; doctors spend years studying how our bodies work, while all I do is some occasional research to learn more about it. Of course they know more than me, because they spent lots of time and money on it.