There's plenty of books that have revisions, but yes, the first version does not physically change. Then again, other than collectors, I don't know many people that have multiple books of each revision/reprint of the same book. To your point, it's not like you can read a book, go to bed, and then wake up to a modified book. However, you could damage your book and go to have it replaced with a different version. Say you loan/give your copy away knowing you can get a new one easier than having your recipient get a copy for themselves. Your new one could be different. It's happened to me

Digital files that you store on your own storage media with free software also can't change (without your intervention). But in new generations many only have phones, not even laptops.