COVER STORY this issue: Titans – Roger Federer by Bill Gates.  The Champion.  It’s no secret that Roger Federer is the greatest tennis player ever.  As David Foster Wallace wrote, he is “one of those rare, preternatural athletes who appear to be exempt, at least in part, from certain physical laws.”  He also seems exempt from the laws of aging.  At 36, he’s still winning Grand Slams with a combination of grace and grit.  But not as many fans know about what Roger is doing off the court … To understand the world we live in, read TIME.

Can the U.S. deter war crimes without going to war?  President Donald Trump had made up his mind about Syria.  It was March 29, and to the cheers of the crowd at a campaign-style stop in Richfield, Ohio, the Commander in Chief declared that after 3½ years and billions of dollars sunk into the Middle East’s bloodiest civil war, America’s troops would soon be coming home.  “We’re knocking the hell out of ISIS,” Trump said.  “We’re coming out of Syria, like, very soon.  Let the other people take care of it now.”  Caught off-guard, Trump’s advisers scrambled through the Easter weekend both to craft an exit strategy to fulfill his vow–and to come up with arguments on why pulling out …

The headquarters of Boundless Mind looks as if it were created by a set designer to satisfy a cultural cliché.  The tech startup is run out of a one-car garage a few blocks from California’s Venice Beach.  On the morning I visited, in March, it was populated by a dozen screens–phones, tablets, monitors–and half as many 20-something engineers, all of whom were male and bearded, and one of whom wore a cowboy hat.  Someone had written in blue marker across the top of a whiteboard in all caps: YOU’RE BUILDING AMAZING SH-T.  But that, more or less, is where the Silicon Valley stereotypes end.  Ramsay Brown, 29, and T. Dalton Combs, 32 , the co-founders of Boundless Mind, are hardly the college …