The Klub does not manufacture its own content, it borrows three authors at a time and runs on what they already built. That is External API in its purest form: plug into something that already works instead of starting from a blank page. Each author brings a built-in audience, a finished argument, and a title people already recognize, so the Klub never has to sell the premise from scratch.

Larry’s version of the rule is to DJ two things that exist, and picking three authors for a season is that same move at a bigger scale. One author might supply the framework, another the case studies, and a third the counterargument, so the table gets friction instead of agreement. The Klub is not reviewing the books, it is using the books as the reason a room full of strangers has something specific to say to each other.
This is the same logic as tutoring the SAT off the College Board’s test, the Klub tutors people’s thinking off three authors’ finished work. Picking three authors instead of one also means the season has a natural finish line, since each book earns its own session.
None of the three authors need to know the Klub exists for the format to work, the API is borrowed, not licensed. What the Klub adds is the room, the table, and the prep discipline the authors’ books alone cannot provide.
Change the three authors each season and the format itself never gets stale, because the container is what is proven, not the content inside it. That is the whole play: sell it first, then go make it, using someone else’s books as the opening move.

Details: Watch Larry explain External API
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