Sometimes you are not seeing a pattern; you are seeing what repetition trained you to expect.

Repeated exposure trains expectation, and expectation then produces the sensation of seeing a pattern that may or may not be there. This is especially strong with people, where a few similar experiences can create a rule you apply to everyone.

When you notice a pattern, count the actual instances rather than trusting the feeling of recognition. Ask how many exceptions you have quietly not counted. Real patterns survive that check.