Thank you, Igor. Someone else had also just answered me by redirecting me to another post of yours making the same point; between the two, I may actually get off my b-tt and avoid hard-drive catastrophe rather than curse it.
Are there any tips that someone forced into the computer age mostly by peer pressure would find useful when trying to back up their hard drive?
I'll Google "how to back up a hard drive." (Yes, that really is how we Luddites keep the hamsters running in there.) But mortality still seems unacceptably frequent -- heat prostration? They really should give the poor criitters AC instead of just a fan to blow hot air back at that wheel.
Similarly, perhaps there's a secret, superior solution to hard-drive backup the powers-that-make-computers know will delay their planned obsolesence or something. ?