Unfinished books

I have an e-reader. It’s not new I have it for many years. Don’t use it often, maybe once a week. And when I do I can’t help feel some sadness looking at all the books I have there that are unfinished. It makes think that I no longer remember the books I own or that I was reading. Should I blame it on the digital format? I certainly don’t remember having as many physical books left unfinished. I…