How about showing the numbers being added more in parallel? Bringing two of the numbers to be added together, but before the addition completes start bringing another pair of numbers together to be added. One major hurdle to get over in getting people to understand J is to get them away from serial thinking.
As to the music behind the Chaplin film - obviously added later and badly. If music or any background audio is to be added, it should be done with care. The music breaks with the scene changes and was abrupt. I found it very unpleasant. I've seen this sloppiness particularly in commercials where the music just stops leaving one hanging as it never completed. ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
