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The last question is interesting. Our eyes create an image with ~ 1 Gigapixel resolution at frame-rate equivalent > 120 Hz.

For real VR/AR, 5G is not fast enough, would have to work in the THz regime for wireless (wow, nature has a huge bandwidth requirement...). Interesting thing about THz is that most electronic materials breakdown and stop working.

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The actual resolution of the human eye is much smaller than that and a lot of our perception is based on interpolation. It's pretty interesting to read up on this.

Yep, this. Each eye is ~1MP, but vibration increases spatial resolution.

Researchers are using this effect now with mobile camera sensors and can image on the 100 nm length scale using interpolation.

Well, without eye tracking you need to render the whole image at peek angular resolution and refresh rate.

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