it also mentions this book's knowledge came from polygraphs
i know they were considered "bad" because they didn't definitively prove lies, and i think they were used as "proof" of lying
but i feel like being able to use someone's biometrics and read them would aid in the detection of lies
it's a tool more than a miracle solution, and i'm wondering if they actually might be a good thing? so long as you don't act like a retard and say "damn, this part of the graph looks like a hedgehog's penis, therefore he's lying" and treat it as actual truth
