How Google's Pixel 4 radar system could be more than a gimmick

Ladies and gentlemen, the future is upon us.

Well, either that, or we’re about to be fed yet another Impressive-Seeming Phone Feature™ that looks incredible in marketing videos but ends up being more limited-use novelty than life-changing tech tool in the real world.

Ever since Google confirmed the presence of a radar-based hand-gesture detection system in its upcoming Pixel 4 phone, ample attention has been heaped onto the question of whether such a system would be incredible or ineffectual — whether it’d represent a new and transformative way of interacting with our phones or merely be a new twist on a tired old gimmick.

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