Are you saying that every single SaaS startup is selling anything because they don’t lose ownership when they provide a service in return for money? I think typically the exchange of money for a good or service is what we refer to as “selling” even if the seller doesn’t lose said service after selling it.
No, I was merely referring to "selling" as it pertains to products, not services. Your data would be a product, not a service. They may build services around your data that use it in some way, but it'd be the service they'd be selling, not your data. Just like how Uber would be selling a ridesharing service, not your car.
If I sell to you the knowledge that the derivative of ln(x) is 1/x, I still have that knowledge.
No different than if I sell to you knowledge of the fact that cardholder XYZ lives at 123 Main St, has phone number 555-867-5309, and shopped at Giant Dildos, LLC 3 times in the summer of 2019.
It is very different. It's literally impossible for you to dispossess yourself of that derivative. So clearly you will still have it. It's not impossible for you to dispossess yourself of users' data. They're not the same thing.
