No, it refers to the effect duration, 8 hours, 12 hours. | Hacker News

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		goldenCeasar on Nov 9, 2020 \| parent \| context \| favorite \| on: Attention Is My Most Valuable Asset for Productivi... No, it refers to the effect duration, 8 hours, 12 hours.

TheKarateKid on Nov 9, 2020 [–]

That’s not how the sentence reads, even if OP meant it that way.

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