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'My job is to invent the future' says Kinect programmer

Why have companies like Apple and Google grown so explosively in the past few years and why do the brands garner such loyalty from their customers?

Alex Riley reports from Microsoft headquarters in Seattle for BBC Three.

Secrets of the Superbrands is on BBC Three at 2100 BST on Tuesday, 17 May. Or watch online via iPlayer (UK only).

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