Your pupil doesn’t lie. Your eye gives away your poker face. When your brain’s having to work harder, your autonomic nervous system drives your pupil to dilate. When it’s not, it contracts. When I take away one of the voices, the cognitive effort to understand the talkers gets a lot easier. I could have put the two voices in different spatial locations, I could have made one louder. You would have seen the same thing. We might think we have more agency over the reveal of our internal state than that spider, but maybe we don’t.
The moment a company brings to market a mainstream AR wearable, like smart contact lenses, that can act as an application platform, like iOS, and supports the installation of third-party applications through a marketplace, like the App Store, there will be a rush to develop AI apps that can read people’s behaviour in real time, in a way that most human brains cannot.
It doesn’t matter if the intentions are good. Such applications would expose vulnerabilities we are not prepared to defend against.