It is an axiom of history that the silent revolutions -- like those that periodically come in science and technology -- are far more important than the noisier, bloodier and more publicized political kinds. That's why these subtle indicators of their progress can be even more momentous than the round-the-clock coverage of upheaval that seems to be dominating our attentions at the moment.
It is a certainty that the future of the world be far more greatly influenced by what is happening in a Chinese laboratory than what is happening in the Arab street.
Colorado is now well into its first year as the first state to legalize recreational marijuana. How's it going? James Hamblin visits Aspen.