I think it's possible that paper books are bad for the eyes

Recently I had a mania for paper books. I don't know exactly what it was, but I was like, "Maybe reading paper books will rejuvenate me in some fashion!" So I bought several of them and started reading.

There is something fun about the paper book. You hold it. You have a physical sense of progress. The paper feels good. It's not valuable. You can toss it…