My top essays/tweetstorms in 2019 on product/market fit, investing, KPIs, YouTubers, and more
Andrew Chen
JANUARY 9, 2020
The iPhone comes out in 2007 and changes the camera industry. – so many Japanese brands! Magic metrics indicating a startup probably has product/market fit. 3) power user curve showing a smile — with a big concentration of engaged users (you grow out from this strong core). Here’s the link.
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