Each day as I travel through downtown Tucson I am amazed at how quickly the most ancient of human behaviors have changed. For as long as there have been Homo sapiens – roughly 200 000 years – people have filled their lives principally with two activities: talking directly with other people and doing physical things.
Sometimes you want to go for a walk and you don't want to be watched. You just want to be anonymous and blend in. Especially when I travel I feel that way because I can't really go out and see a city the way other people can and I miss out on a lot.
