Does my writing sound like AI? Claude has thoughts

PCWorld explores how human writing can exhibit AI-like characteristics, using Claude Sonnet 4.6 to analyze writing patterns for potential AI tells. The analysis identified parenthetical asides as the top AI-like trait, followed by em dash overuse and long sentences exceeding 35 words. Despite detecting these patterns, Claude rated the human writing as mostly authentic with only a 3/10 AI similarity score, suggesting stylistic quirks shouldn't be mistaken for artificial intelligence. What could be better than an em dash? They pepper my writing, adding dramatic pauses and emphasizing my biggest points.