Valve boss Gabe Newell will conduct an AMA on Reddit tomorrow, January 17, it has been announced (via Kotaku). The AMA begins that day at 3 PM PT / 6 PM ET right here on Reddit.This won't be Newell's first AMA. He held one in March 2014 where he did not discuss Half-Life 3, but instead revealed his favorite non-Valve game, his $1 million charity donation, and how he's never thought about leaving Valve, among many other things.Valve is a giant in the PC gaming world, so there will no doubt be a flood of questions.