Keichi Sasaki on Writing Copy That Works: One Phrase Over Mission-Vision-Values
Copywriter Keichi Sasaki and serial entrepreneur Masayuki Tadokoro debate whether one sharp phrase beats mission-vision-values, and how far generative AI can go in writing copy.
- Sasaki argues mission-vision-values (three items) is too many — employees don’t memorize them; one phrase that works internally and externally is better.
- The ‘cross point’ method: map what the target audience worries about and wants against the company’s real strengths; where they intersect is the copy.
- Tadokoro’s Startup Advisor Academy (SAA) — a 6-session entrepreneurship training program — lacks a sharp tagline, which he acknowledges as a gap to fix.
- Sasaki rates generative AI copy at 7 out of 100 for his own final output — up from 5 in a prior conversation — calling it slow but measurable progress.
- An AI specialist told Sasaki: AI retrieves the best of what already exists; Sasaki writes from an imagined future backwards — fundamentally different processes.
- AI is useful for long-form manuals and step-by-step content but cannot produce laser-precise copy that cuts through to the reader.
- For startups, copy should come after product-market fit; the language often emerges from observing how real customers actually use and describe the product.
2025-10-31 · Watch on YouTube
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