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A comment on Ask HN: How do you test ideas before building?. Parent comment

Re:Ask HN: How do you test ideas before building? by mkranjec on Sunday July 10, 2022 @04:55AM (#32042941)
Care to explain how would observing that work in practice? There's no ISBN, so you can't track rentals. QR or URL would not give "real" results.
[ Parent | on HN ]
Re:Ask HN: How do you test ideas before building? by zkirill on Sunday July 10, 2022 @09:18AM (#32044456)
You sit on a chair in the library or book store isle next to where you put your “book”.
[ Parent | on HN ]