Top Definition
Sefton’s Law states that the likelihood of mainstream adoption of new innovations is inversely proportionate to the extent to which using said innovation makes the user look like a dick.

Coined by Adam Sefton, Executive Creative Director at Reading Room
Google Glass is Sefton's Law in action. That wearers are already being called "glassholes" shows you that it'll never go mainstream.
by SomeRoomie March 26, 2014

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