They are working on technology , that's why it isn't still out there for public use. It will come by 2020 .
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They are working on technology , that's why it isn't still out there for public use. It will come by 2020 .
This tech isn't out for public use, because it is impractical and unreliable. Also I can't imagine a way how this is fixed, because photons (aka light) are easily reflected, literally the reason why we can see things.