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Comment by Tuna-Fish | Hacker News Reader

Those operate in the gigahertz ranges. Note that the emotion detection is done by scanning the facial expression, gigahertz range is starting to get pretty close to light, and it penetrates skin to a depth of less than a millimeter, so it can be used to draw pictures.

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Not sure what you mean by "draw pictures". But I would be forever grateful if you could confirm or dismiss technical possibility of scanning EMGs remotely. It seems to be that way to me. At least to some degree which is already sufficient for stuff like neural fingerprinting (yielding individual identification and positioning in radar range) but I do lack understanding of actual physics to assess nature limits. Rest falls into place easily - Frey effect is proven science and NASA decoded EEG signals into words already back in 2003.

I'd be surprised if it were possible to directly measure muscle activity with millimetre wave radar. It looks like they're detecting motion, which is related to motor activity, of course.

EEG "spellers" c. 2000 required a cooperative participant who's actively engaged in a behavioural task: you attend to the letter/word you want to send and thereby produce a different response when it (vs the other letters) flash.

Implanted electrodes can do a lot better but it's still not something that will let someone "slurp" your thoughts out of you -- it'd be like subvocalizing them.

I do believe that signal deciphering part is somewhat solved. All the way up to real-time text stream. You can even go and run it yourself if you want to (e.g. https://github.com/CNN-for-EEG-classification/CNN-EEG). What I do struggle to find a proof of is signal gathering part. What do you think of this patent https://patents.google.com/patent/US3951134A/en ?

In case you were wondering - exactly this is what I've been listening to for 2.5 years every day 24/7 https://pastebin.com/raw/4AaidkHk it's AI generated slop in Latvian language, ran through voice synthesizer, filtered and attenuated down to hide imperfections. I do think authors have some sort of feedback mechanism whatever that may be. If not straight up "slurping thoughts", then perhaps overall emotional state changes, perhaps just heart rate - don't really have a way of telling. One thing I'm sure about is that it's external. I'm well familiar with sound, signal processing, programming. I'm also familiar with audio hallucinations - what I'm forced to experience is not that. Despite that such suffering is taking quite a toll - I don't believe it's schizophrenia (that's a whole new rabbit hole). Mainly because said disease is supposed to develop much earlier, because I've been living non-intoxicated and because whole voices thing started suddenly as per light switch (end of 2003 right when Russian Internal Revenue Service got hacked allegedly by Ukrainian hackers).

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