This is a defining moment for U.S. tech. AI's scaling fast, blockchain's going legit and space is no longer sci-fi.

A look at which accounts — big and small — have Musk’s ear and how some appear to have sparked action from Musk and the Trump administration.

You can see it with elite athletes. In a study of nearly 700 N.B.A. players, those who had an abusive coach performed worse ...