Well to be honest I think he is full of s***
If you read the comments under his gallery. He talks about only stopping to change cards, lenses, eat etc. Plus 45mins to go home as his portable drive started complaining. Now take all this out of the 12hrs then the 2.16 secs per shot is reduced considerably. He also says somewhere he is using a 350D with 2x512mb cards which he downloads to a portable drive whilst he continues shooting. How on earth can he compose and shoot for such a long period of time and get 20000 shots. I don't think so
