At 220 pixels-per-inch, the Retina display's pixel density is so high the human eye cannot distinguish individual pixels from a normal viewing distance, so text and graphics look incredibly sharp.

ENGADGET: Apple announces next-generation MacBook Pro: Retina display, 0.71-inches thin, shipping today for $2,199

As money managers and individual investors become more universally skilled, the distance between the best investor and the average investor shrinks.

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Indeed, the bishop comes across as a stubborn, prickly individual and a man whom it is easier to admire at a distance.

ECONOMIST: East Timor

The eye tracker also detects the eye distance of the wearer by measuring the eyes' vergence, which allows to optimize the 3D experience for individual physiognomies.

ENGADGET: SMI Eye-Tracking 3D Glasses use rim-based cameras to adjust perspective