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thelittledoctor comments on How does long-term use of caffeine affect productivity? - Less Wrong

12 Post author: quartz 11 April 2012 11:09PM

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Comment author: thelittledoctor 12 April 2012 05:48:39AM 5 points [-]

You wouldn't likely be able to just dissolve anhydrous caffeine powder in water and keep yourself blinded; it's incredibly bitter (second only, in my experience, to tongkat ali / eurycoma longifolia root powder).

Comment author: bogdanb 14 April 2012 11:22:08AM 0 points [-]

You just need a similarly bitter placebo. Make (sugar+caffeine) and (sugar+quinine)* such that you can’t tell the difference and ask a friend put to them in two bottles labeled with “A” and “B”.

(*: Quinine is probably a bad choice for a placebo, since it has its own effects that might confuse the results. It’s just the first thing that came to mind that’s bitter.)