Blog
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Love the problem, not the swords
A sudden startup idea is a red flag. Here is the short check I run before building: real times the problem hit me, real people it hit, and what it costs.
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To make AI video look real, make it worse
A short guide to realistic AI video: why polish reads as fake, why camera geometry beats mood words, how to degrade after the model, and when to label.
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Our best customers wanted one video, not a daily habit
Daily retention made our most ready-to-buy users look like churn. Here is a short way to judge return on the clock your customer's need really runs on.
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A paywall up front got us 12x more trials and 1 sale
Showing our paywall during onboarding brought 12x more free trials and one sale. Why trial counts mislead, and the four numbers we now track for each test.
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Rank videos by spike, not views
Sort short videos by views divided by followers, read hundreds of comments before you call a niche dead, and copy the hashtags that real winners share.
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Useful tools that actually work
What Zenkai Club builds, the tools in the lab today, and how to tell us what to build next.
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174 people came from our ads. Zero left with the video we sell.
Our ads brought 174 new people who wrote scripts and recorded takes, yet none saved an edited video. Here is how to count the result, not the busy steps.