Fortnite Battle Royale was built in two months. I was a producer at Epic, and that's the speed Tim Sweeney moves at when he decides the whole company is turning. He just decided again. Inside Epic, a pivot means the whole company turns that week. People get new teams, new bosses, new roadmaps, and nobody blinks because that's how the place has always run. By the time Tim posts a memo about it, the moves usually already happened. Here's where it gets bigger than Epic though. Epic makes Unreal…