This new laptop replaces the physical screen with a 100-inch virtual display

Since their inception, laptops have had the same clamshell form factor. It’s a tried and true design. Tech startup Sightful, though, is doing something different, taking the screen virtual.The company recently launched the Spacetop (opens in new tab), a laptop that consists of nothing more than a keyboard connected to a customized pair of NReal augmented-reality (AR) glasses.Putting the glasses on allows users to view a massive, 100-inch AR display that only they can see. Multiple windows can be

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