Personalization can be very useful in some contexts but very harmful in others. Searching for pizza online, it's probably OK to keep showing the same pizza shop as your No. 1 choice. I don't see any big political consequences out of that.
Writing the book was a pretty cool thing to go through, it really made me think of how crazy a journey it really was for this kid from Redwood City, Calif. When I was 12 years old, I was practicing my signature, but did I ever think I'd be a two-time Super Bowl champ, playing on arguably one of the best franchises of all time with the best quarterback of all time, for the best coach of all time?