https://review.firstround.com/how-superhuman-built-an-engine-to-find-product-market-fit
→ 2) Analyze feedback to convert on-the-fence users into fanatics.
Improve the Product
What is the main benefit your receive from SuperHuman?
word cloud → speed, focus, shortcut
politely pass over the feedback from users who would not be disappointed
fail in love with product
contrarian = 相反した
How can we improve Superhuman for you? and Mail Benefit : Speed and Somewhat disappointed User
clea
→ How to Lead by YCombinator https://www.ycombinator.com/library/6s-how-to-lead