Link?
A link to my game? It's not online, though I have the video of it on my laptop. Somebody on the Antarctica cruise asked me to show it at one point, but there didn't seem to be too much interest.
If you check here you'll see me listed as a participant (under my English name):
https://en.wikipedia.org/wiki/Jeopardy!_Teen_TournamentObviously so much of what James has accomplished is his knowledge (he gets 97% of his buzzes correct vs. only 91% for Ken Jennings) and his unprecedented willingness to bet with no fear, but a lot of it is also reflexes.
In the Teen Tournament that I was on, the clues are much easier, and most of the contestants know most of the answers. It's just a question of who can figure out the timing to be the first one to buzz in as soon as they let you. Buzz too early and you're locked out for .2 seconds, which is a lifetime in the world of Jeopardy!
Sadly I was matched in the first round against the guy who won the whole tournament with his amazing reflexes (and knowledge).