63 lines
2.9 KiB
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63 lines
2.9 KiB
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Monitoring Brainwave Activity From a Long Distance
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The human brain's electromagnetic activity is pretty faint. Faint to the point
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that equipment typically needs to be mounted on the person's head to be able to
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measure it.
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`The device invented by Robert G. Malech <./intro.rst>`_ overcomes the need to
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mount equipment on the head by using triangulation, but what is the maximum range
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it can operate in?
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The answer is that it probably doesn't matter, because various supplementary
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technologies can be used to overcome range limitations.
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This page will enumerate a few technologies I've come across that **might** be
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used for this purpose. Bear in mind that **the contents of this page are largely
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speculative**, and that the list is far from exhaustive, since I am not in anyway
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versed in electrical engineering, or any of the other fields that can be useful
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here.
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Neural Networks
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---------------
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I've come across YouTube videos about (computer) neural networks that can be used
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to separate signals from noise and amplify signals that would otherwise be too
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faint to be detected.
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There was a video (for which I sadly lost the link) that goes in lengths
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explaining and demoing some jaw-dropping feats that could be performed with such
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networks. For example, it was possible to reconstruct audio from a silent video
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by detecting vibrations on a surface (such as a tree leave or the surface of a
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drink).
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The vibrations in the footage were so faint **the pixels were not even moving at
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all**; the vibrations were only manifest as ever-so-slight variations in the
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color levels of those pixels (which were not visible to the naked eye). Using
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only those faint variations in the colors of the otherwise static pixels of a
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goddamn tree leaf, a strikingly reasonable reconstruction of the audio being
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played in that room was achieved.
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Every Wireless-Capable Device Around You
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We live in a world full of digital devices capable of sending and receiving
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electromagnetic signals in one way or another.
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Every computer, every phone, every router, and nowadays even many appliances
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like televisions and washing machines, come with WiFi/Bluetooth/GSM/whatever
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other antennas.
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Furthermore, all of these devices come with many (as in, hundreds) of bugs in
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their firmware and software stacks, dozens of which function as hideous
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vulnerabilities for arbitrary code execution attacks.
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What this means is that **in theory**, it's totally possible for the three-
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letter-organization in your country to seamlessly use every piece of wireless-
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capable technology around you to monitor and beam signals into your brain --
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all without having any spyware directly baked into any of these devices,
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because hijacking them in real time everywhere you go is as trivial as 2+2
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to a three-letter-organization, thanks to the hundreds of bugs they contain
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in their firmware and software stacks.
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