Indeed. I've been searching for stuff that I could easily find even as little as 10-15 years ago, and it's gone. Nothing on archive.org (even though it started

Indeed. I've been searching for stuff that I could easily find even as little as 10-15 years ago, and it's gone. Nothing on archive.org (even though it started in 1996), mirrors are gone, it's just not there. Heck, even some more recent stuff can't be found anymore, by any search engine. As for digital storage in general.. magnetic storage is quite good. Leave your harddrive on the shelf for a few decades and it'll probably still be ok. At least the magnetically stored data. Spin up the disk every two years and the rest is taken care of too. But Flash storage gradually lose data, it's not permanent. Come back in twenty and it's gone. To keep digital data you'll have to implement a scheme of regularly refresh + copy/convert to newer media. That's a Herculean task if you want to keep all that we currently have of digital records. Whereas a stone tablet will keep nicely.