I'm now reading three books, more than I like to juggle at one time. One book in my head has always seemed enough for me, a simple reader who processes slowly. But...if you have a hammer, you must find...and pound...a nail.
One book on my Kindle - The Alchemist. One book on my MP3 player for reading on the walks with dogs - The Poisonwood Bible. One book on paper...with a binding...and dustcover, you remember those, I'm sure - The Art Instinct. I hope my one-brain head can handle assorted literature streaming at me simultaneously, channelled through three different media.
I could never do homework with the radio on. Maybe I've changed. Maybe Kindle and my MP3 have stretched me, stretched my brain. We'll see.