How to Walk (12 miles a day)
After walking to and from work for 5 years along the same route, I found that I prefer walking without listening to anything on headphones.<p>Just thinking increases awareness of my surroundings, allows me time to process existing thoughts as opposed to consuming more inputs, and connects me to the people I would inevitably see on a semi-regular basis.<p>Personally, I have found that 1 hour + is a good threshold to aim for for some really quality thinking. After about an hour I've already processed normal stuff about family or work and have moved on to deeper topics.