I'd argue that most of the time you never owned your data, it was held under lock and key by proprietary serialization formats. Sure it's physically on your di

I'd argue that most of the time you never owned your data, it was held under lock and key by proprietary serialization formats. Sure it's physically on your disk, but data is only useful if you own the mechanisms to read and write it. If that software is proprietary you don't own the data.