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Until we can do this with a chip in our brain, a new device has come out that overlays video onto our normal vision using special glasses.

在我们可以用大脑中的芯片来做这件事情之前，一种可利用特殊眼镜将视频叠加到我们正常的视觉之上的新设备已经面世。

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This is not "digital television" — it is a normal composite video signal for analog television converted to a digital format for transmission and then converted back to analog for display.

这不是“数字电视”——模拟的组合视频信号变为数字信号以利传输，由变回到模拟信号用以在模拟电视机上显示图像。

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My brain pulled out of snapshot mode and returned to normal video mode, and this transition itself was a bit jarring.

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"I think a million concurrent streams will not work on top of normal video traffic, " said Graham Moore, from web traffic management firm Zeus Technology.

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Given that a standard movie is 2.5 hours long, that translates to 2.5 GB for a normal video and 7.5 GB for an HD video.

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