The problem with ebooks is that you cannot be 100% certain that you're reading the original text. That can only be preserved in physical copies. That's why the destructive book scanning for AI is such a tragedy. There's already plenty of examples of original texts being surreptitiously revised, and it happens with videos too.

Well no, you can only be 100% certain you're reading the text found in that book. Books often change over releases. It's not some sacred tome containing an ever-updating reflection of the author's ideals. It's just the draft at the time the book was printed.

I was shocked to discover that "How To Win Friends and Influence People" by Dale Carnegie was heavily rewritten by his wife after his death. I had two copies of the book, and sure enough, one was the old version and the other the new. The new one did not withstand scrutiny.

That's not a problem with Ebooks writ large -- a zip file of a bunch of HTML documents aren't likely to randomly change on you. It's a problem of some evil vendor's "ebook ecosystem", where one day your copy of 1984 could vanish from your library. Most of the ebooks I've been reading lately are all public domain classics from Standard Ebooks.

> The problem with ebooks is that you cannot be 100% certain that you're reading the original text.

That's equally true of print books. Misprints happen.