Pretty far, compared with typical learning environments. Not just for kids either: according to the Entertainment Software Association, the average age of video-gamers these days is 37, with 29% over the age of 50! (You know who you are. . .)
According to sources I'm connected to who know this well (who are now banging their heads on their keyboards and calling me “the aging bald guy” at home and away), that's like saying a Bentley is a passenger car. Yesss, it is, but. . . arghh!
Why can't learning be more like this?