Is the phone's camera more privacy-preserving than the glasses's camera?
Yes, obviously? Holding a phone to film someone is obvious, having glasses that film is just having glasses…
What kind of privacy are people supposed to expect in a public place like an aquarium?
Yes, and now I can do it with my glasses without casually and needlessly invading the privacy of everyone around me - except the fish and I’m not that convinced by an argument for fish privacy.