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This content was created by Eric Siu. This content was uploaded by Eric Siu. This is a YouTube video titled "My BIGGEST Marketing Mistake Of 2025" (posted 2025-12-26). The excerpt is an English-language segment in which Eric Siu reflects on a major marketing mistake: insufficient customer development for his LinkedIn account-based product called Karat, which he now views as a niche feature rather than a full product. He references talking with competitors and addresses someone named Neil while drawing the lesson to do more customer development; he also invites viewers to follow for more AI marketing and business insights.










