wow. I have been walking since my childhood living in two different cities (Taipei and NYC). I really enjoy walking hours just to look at streets and scenes in different hours of days. I feel that I can perceive the environment while walking in much higher resolutions and bandwidth of information flowing into my brain than driving.

I was interviewed once in Mountain View in 2006 and I remembered walking on El Camino Real rd between Palo Alto and Sunnyvale on 100F July. I was the only one walking on the road and it is pain in ass to cross road since the traffic system is designed for cars. But I still remember vividly the scenes along El Camino Real between Palo Alto to Sunnyvale until now, even just one day in my life.