Hacker News Reader

…cue someone playing that inaudible signal continuously to block all people nearby using their Siri or what have you.

That's a really bad way to solve that problem, it relies on other systems following a protocol that they have no reason to even know exists.

A much better way to solve it, which is already being done (to some degree of success) is to calibrate the phrase detection to the owner's unique voice.

Reminds me of this namshub: https://youtu.be/xuGDhZorlQ0?t=23