I saw that picture, too, and I am now posting this FROM MY TREADMILL. It takes a bit of concentration to walk and type at the same time, but I've gone nearly a mile while reading 3FC. This may be my new habit. I did have to pause and get a headscarf so I don't drip sweat onto the keyboard.
I'm charting my progress on some graph paper. My goal is to walk 1,000 miles. (A journey of a thousand miles begins with me deciding to take care of myself.) So far, I've done 24 miles. I like to see the progress.