June 1, 2011
#906: Advertising Discovery
![When advertisers figure this out, our only weapon will be blue sharpies and "[disputed]". Advertising Discovery](https://imgs.xkcd.com/comics/citations.png)
Advertising discovery:
[[Person sits at computer, reading an ad on the screen. The bracketed superscripts are blue.]]
Ad: Turgidax(R) triples[2] your penis size overnight,[2][5] improving both your sexual attractiveness[2][7] and your cardiovascular health.[7][8][9]
Person (thinking): Sounds legit.
Wikipedia has trained us to believe anything followed by little blue numbers in brackets.