Recently I was on a train to DC, thinking about human beings as tribal creatures.

FORBES: Support the Tribe

Summer has us all thinking about travel, and from train stations to portable homes, this week was a big one for architecture of mobility.

ENGADGET: Inhabitat's Week in Green: energy-harvesting toilet, LED lightbulb overhaul and a floating, solar-powered resort home

Pop Warner's executive director, Jon Butler, is taking safety more seriously these days, thinking of new rules and creative ways to better train volunteer coaches.

CNN: Make football safe for our kids

To compensate for this, he described a plan for 10, 000 Chinese students to train at U.S. universities to learn the basics of innovative thinking (and open Chinese universities to a like number of Americans).

FORBES: The Chinese Strategy to Recapture Their Best and Brightest From America

"I'll continue to train hard, play well and keep scoring you never know what the gaffer is thinking, " he said.

BBC: Williams hopeful of Boro chance

During a three hour Acela train ride to New York from Massachusetts on Oct. 24, those stories had me thinking about the small town that made me, to the big cities that broke me.

FORBES: Getting Over Our Over-Levered Selves

Perhaps you have noticed, for instance, that while commuting to work you are thinking about all sorts of things that don't involve being in the car, train or bus that you ride every day.

CNN: New TV show plays tricks on your brain