That still leaves my first question regarding observer effects and how people would respond to such a technology on an individual level. It would have the capacity to reshape behaviour towards preferential and/or optimal interactions, would it not? Seeing how we do not want reinforce models with 'erroneous' interactions?
You are persistently surveilled in London and Shanghai and New York City - yet people act just as unhinged in ways they did before cameras were installed.
I'm not sure what other data acquisition/technology arc is possible though, and open to ideas.
Unhinged people do, but ordinary people? I'd be willing to bet that normal people who are in areas where they are aware they're on camera don't behave as their normal selves. It's hard to see how it could be otherwise.
Even when this barrier can be overcome (i.e. people become accustomed to wearing these devices), I worry about the opt-in nature of it. We've yet to see a disruptive technology adhering to this principle through-and-through, and if current learning efforts are anything to go by, training data is not something companies want to willingly let go or lose out on.
Taken both, this path has the potential to be quite coercive if no strong guarantees or safeties can be upheld, especially if early exciting trials generate an interest-boom similar to the one we're seeing right now in the LM-space.