> ... but what textbook says you can't filter a signal ... i don't think any... | Hacker News

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		signa11 on March 9, 2011 \| parent \| context \| favorite \| on: Stanford Wireless Breakthrough > ... but what textbook says you can't filter a signal ... i don't think any textbooks makes that claim. from the article: ...a researcher even told the students their idea was "so simple and effective, it won't work," because something that obvious must have already been tried unsuccessfully.

mikeknoop on March 9, 2011 [–]

I can certainly understand that. My confusion arose from the quote:

> "Textbooks say you can't do it," said Philip Levis, assistant professor of computer science and of electrical engineering.

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