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What would happen when the margin of a book becomes public domain and readers of the same book can exchange their personal insights? We’ll find out as soon as *openmargin launches. Sign up for early access right here. (Note: I’m one of the founders.)

What would happen when the margin of a book becomes public domain and readers of the same book can exchange their personal insights? We’ll find out as soon as *openmargin launches. Sign up for early access right here.

(Note: I’m one of the founders.)

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