So, about that trade war. Recent days have presented a dizzying series of reversals followed by reversals of reversals over whether, when, or if the United States will impose punitive tariffs on China in response to unresolved issues, ranging from intellectual property theft to lack of access to domestic Chinese markets. On Tuesday, the White House made a splashy announcement that it will move ahead with tariffs, which were widely reported as a done deal. Except that they're not.

Get in-depth coverage of current and future trends in technology, and how they are shaping business, entertainment, communications, science, politics, and society.