Lol. No need to worry, Lock has this all covered. Since day one I got on the computer at like 12, I've been saving anything that's worthwhile. So all is fine. Probably not. But hey, I got a lot of good stuff saved and backed up. I got all the best music, anime and scenery pictures, videos, knowledge, etc. Anything that's good, is on MY pc. Haha!! OK, there is some anime videos I never saved. And what about what I didn't see!? And what about what wasn't filmed/created or filmed/documented poorly or shared or... No but seriously, it's not a problem, in my utopia heaven of ASI we will re-make it all over again probably a billion times and more. You'll see sandy brown again and Ralph certainty. But in the meantime, everybody does have all that stuff you can find right now saved, and backed up, a good amount of it is backed up I believe, even saved on other peoples drives not just thee creators. When ASI comes, it will all get immortalized. And finally, I already have that software you seek. You make hashes. Hmm I think your idea is better actually. However I don't do it anymore, I just hope to god it all there, and back t up, but i should get a 4th backup, 1 is crappy old and the other is fine, and, there is many copies of the same stuff. There's a good chance that 2 HDDs holding your data is pretty secure, hence more=even more safe. Of course I always backup everyday to my email service my frikinsuperimortant notes. And, our brains have redundancy - each column is just a freaking redundant clump so if 1 neuron dies the memory doesn't. Sure invariants accept different kinds but you also need specifics stored so no columns shouldn't be invariants. Can a sentence node reconstruct if the dog is a certain type of dog yes...Can a paragraph node reconstruct if this sentence node was sentence a or b? Yes... But at the highest node it fails. You can compute/store clusters/invariants each time or once using the net data stored as is no representations.
SUPER USEFUL TOOLS HAHAHAHA
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https://www.exactfile.com/>
https://www.diffchecker.com/>
https://www.moo0.com/?top=https://www.moo0.com/software/FileShredder/>
https://www.torproject.org/When you replace your HDD, clone it and pull it out and stuff it in the closet as a backup.