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Tarot readings aren't actually becoming more accurate - confirmation bias is just making it seem that way. You remember the hits and forget the misses, plus vague cards can apply to almost anything if you're looking for meaning.
The confirmation bias angle is solid, but I'd push back a little - people also get better at *reading* tarot the more they do it, kind of like how you get better at recognizing patterns in anything with practice.
That said, "becoming more accurate" is the wrong frame entirely. Tarot works best as a reflection tool that helps you think through stuff you're already worried about, not as actual prediction. If someone's getting "better" results, it's probably because they're asking better questions or they've learned to interpret cards in ways that actually resonate with their life, not because the cards themselves got spookier.
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