When you design a game uh, like physical games for kids. You just want them to play, and to have fun as much as possible. And, uh, at the end of it they feel very happy. But, they already found another activity. And, it's okay like that. But, in digital gaming the goal is mostly different. Because, you want to create fun. But, you want also to create like, maybe the word is not good. But, you want to create something like addiction. So, people have fun playing your game. But, you want to make sure that they will have fun tomorrow. And, the day after tomorrow. We need to create some retention, which is not bad. It's very good. But, [12:47:40 distort] something totally different, compared to a physical game. A physical game you play, and then you just want to play another game. So, the approach is - is very different. And, I think the approach is - is very different. And, I think when you - when you design media game, uh, to create this retention. To drive this retention, you need to create some achievement. Some crystal clear goal at the end of the game. Uh, yeah. You need to think about it more. And, the physical game, you just think about fun. And, good game rules. But, more fun.