A place to discuss potentially promising methods of intelligence amplification in the broad sense of general methods, tools, diets, regimens, or substances that boost cognition (memory, creativity, focus, etc.): anything from SuperMemo to Piracetam to regular exercise to eating lots of animal fat to binaural beats, whether it works or not. Where's the highest expected value? What's easiest to make part of your daily routine? Hopefully discussion here will lead to concise top level posts describing what works for a more self-improvement-savvy Less Wrong.
Lists of potential interventions are great, but even better would be a thorough analysis of a single intervention: costs, benefits, ease, et cetera. This way the comment threads will be more structured and organized. Less Wrong is pretty confused about IA, so even if you're not an expert, a quick analysis or link to a metastudy about e.g. exercise could be very helpful.
Added: Adam Atlas is now hosting an IA wiki: BetterBrains! Bookmark it, add to it, make it awesome.
I wonder how many of the non-drinkers are super-tasters. If so, this could make dietary differences (like avoiding dark green veggies) which would affect longevity.
On the other hand, this is a long inferential chain, and just to generalize from one example, I don't like the taste of alcohol or other bitter flavors (grapefruit, coffee unless considerably buffered), but enjoy most dark green veggies.
Fascinating idea for another confound they didn't control against. How common is what you call a super-taster, though? If it's infrequent enough, it can't possibly explain the entirety of the huge effect in the study.