> It never occurred to anyone to inject a radioactive tracer... I'm going to pos... | Hacker News

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learnstats2 on June 2, 2015 | parent | context | favorite | on: Researchers Find Missing Link Between the Brain an...

> It never occurred to anyone to inject a radioactive tracer...

I'm going to post the relevent xkcd comic, although I fear you failed to meet this standard: https://www.xkcd.com/793/

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