Somewhere in the r/gadgets thread about Dyson's new toothbrush, past the surveillance gags and the sticker shock, one commenter asked the only question that really matters: why do I need a camera in my mouth?
I've asked myself the same thing since the CameraJet landed, because my first instinct was to file it with every gadget that solves a problem nobody had. Then I read how it actually works, and found myself reluctantly impressed.
