"Experimenting in rock is at its best when you dream from the perimeters and bring it back to the center. All my favorite innovators disappear into the woods and bring something back, and you get to hear the songs distilled from those experiments. I used "Kid A" as an example, because I love the album. We did our Zooropa we did our Passengers, even our Pop experiment. There were great ideas on that album, but we didn't have the discipline to screw the thing down and turn them into magic pop songs. We'd become progressive rock! Ahhh!"
- Bono, 2005
did you know
The lyric "3:33 when the numbers fell off the clock face" from Unknown Caller is a reference to the Bible verse Jeremiah 33:3. Bono refers to it as "God's phone number".