If it's worth saying, but not worth its own post (even in Discussion), then it goes here.
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but I remember faintly that someone on LW got into problems by taking potassium as a nootropic.
I remember this too.
You're not thinking of gwern and magnesium?
If it's worth saying, but not worth its own post (even in Discussion), then it goes here.
Notes for future OT posters:
1. Please add the 'open_thread' tag.
2. Check if there is an active Open Thread before posting a new one. (Immediately before; refresh the list-of-threads page before posting.)
3. Open Threads should be posted in Discussion, and not Main.
4. Open Threads should start on Monday, and end on Sunday.