South to east, east to west... west back to east?

摘要

"Ask not for whom the bell tolls, it tolls for thee." — Ernest Hemingway's derivation of the original text from poet John Donne's "Devotions upon emergent occasions." In the course of human history, technology development has transitioned to different parts of the world with the rise and fall of civilizations. A few signs are emerging for a possible transition from its present epicenter in North America to the Eastern Hemisphere.