Networking by flickering lights gets some commercial traction

@markfrauenfelder is the one who writes about tech as something one makes, whereas @doctorow writes about tech as something one buys. Cory even goes so far as to say that this existing technology is not “real” until it is a consumer product.

Rather than complain about the glut of poorly designed crap made on the cheap, we can always do it ourselves instead, without cutting corners.

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