Book excerpt: We all want to believe we can drive responsibly and monitor distractions. But our attention is limited by nature, and we are often very subtly distracted from noticing things right in front of us. Depending on what you're doing while you're driving, you could literally miss seeing a giraffe grazing on the roadside. Because of distractions, many people have failed to see a gorilla beating its chest right in front of them, and this is no joke.We really are not good multi-taskers when our attention is spread over tasks that require dedicated attention. That's why conversations on cellphones turn out to be a serious distraction to drivers. Read this book and see what you think. And then see what you think about whether it's fair to the rest of the people in your car or on the road when you allow yourself to be distracted in the special way that cellphones can distract.