Also the guiding principle for everyone who believes in Q-Anon, that the moon landing were faked, and that the earth is flat. Classic case of sampling the dependent variable.
You could also do a comprehensive study of 1,000 highly successful people in business and find that they all had one thing in common. Does that mean that one thing is what made them successful above everyone else? You might think so, until I told you that one thing in common was that they all brushed their teeth regularly. Just because a successful person does something doesn't mean that's the reason for their success, even if they claim it is.
you mean I’ve been brushing my teeth all these years like a chump?!?

