I double checked my drive and you're correct with regard to mobile backups. That's reassuring. It would be nice to have a utility to give a definitive diff of

I double checked my drive and you're correct with regard to mobile backups. That's reassuring. It would be nice to have a utility to give a definitive diff of what's on your hard drive that's not on your: Time Machine drive / [Carbonite, Backblaze, etc] backup.