Is personal information really a kind of property, that can be stolen? If it is, aren’t we doing this all the time, any time we perceive anything about anyone? How is this different than taking a picture of someone? The image is owned by the photographer, not the subject(s) according to current laws. if I meet someone on the street, and record their name, the conversation we had, and the location where I met them, an…
I think there is a good argument that this is often not just. The iconic image of many events may have the victims preferring not to be that iconic representation years later. They may want their life to be known for them, not a moment long past. For the most obvious example, the famous image of a child running during the Vietnam war[1]. She's famous for being terrified of a napalm attack against civilians and allied forces. The photographer gets to decide if it may be reused, and he will, where it's proved to be his meal ticket. There's many less significant examples of where resting with the photographer is inappropriate.
Rights resting with every subject would raise its own, different problems. I'm not sure how to improve the balance without unreasonably restricting the freedom to take perfectly reasonable snaps.
> if I meet someone on the street .. right to demand that I not record that information
They should, unequivocally. I can walk past a person with clip board taking a survey. I prefer unannounced recordings to be left to authorities and journalists.
> Does my perspective or interpretation of that information give me some ownership to that data?
Nope. If it's about me, I care not what you are trying to interpret from my eye colour, location and my presence in a shop. Just whether I have agreed to your monitoring of me, or whether you are one of a limited number of exceptions. Which seems to be the sensible starting point of GDPR.
> What if I use that information for commercial gain
See above. Makes no difference, other than hugely reducing my sympathy for its collection. I don't care if it concerns 10 or 10m if it's without informed consent (no dark patterns etc).