I think it's fallacious that deeper understanding of system would guarantee data safety. I have no idea what the most of the software and hardware on the n devi

I think it's fallacious that deeper understanding of system would guarantee data safety. I have no idea what the most of the software and hardware on the n devices I use actually do. I know they are targeting large masses of end users so I can trust the industrial process that created them. What is needed, I suppose is educating that all data that is not backed up should be considered volatile, and digital goods such as kindle books are for consuming but not for collecting. That said, I don't mind consuming digital volatile goods - there are very few books I re-read and I usually acquire paper copy of those.