He's not the guy behind the startup in the OP, he's just a guy doing homeschooling sharing his own personal experience. He's saying that at one point they went to Paris, which is a very educational think to do. That's homeschooling. Then they also studied Viking stuff. Maybe it was even in Norway at Viking sites? That sort of thing. A reasonable response to what do you do that Khan Academy doesn't which was the question asked of him.
