I saw a video 3 or 4 years ago.
The video is about the idea that arithmetic will disappear in the future and only will be a sport, like hunting that passed from a need to a sport.
In the video there was a little extract of interviews with three people (I think that one was Salman Khan from Khan academy) and it's about the actual model of education.
The video was posted here.
The video had Spanish subtitles, at this address.
Could you help me in finding this video? Sorry there's so little info!