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How about that thing in the Dark Knight Batman film, where he hacks into all the cell phones and then uses reverb / echo analysis to somehow create a 3D volume rendering of the space.

They can't do that yet, right? Right?



You know, honestly, thinking about it, I'm not feeling certain to say no.

First, could they get an audio feed of all or many of the cell phones in a given cell?

Second, can, you know, Science, or science the NSA has, do that 'reverb / echo analysis' thing?

I don't really know either way, but find the second one more dubious than the first.




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