Four months after slapping Chris Rock at the Oscars, Will Smith has apologized on camera for the move that shocked viewers around the world. “It’s been a minute… Over the last few months, I’ve been doing a lot of thinking and personal work… You asked a lot of fair questions that I wanted to take some time to answer,” reads the text opening the video he posted on Facebook Friday. A somber Smith, 53, then sits down in the video to do just that, beginning with answering, “Why didn’t you apologize to Chris in your acceptance speech?” “I was fogged out by that point,” said Smith, who shortly af…