I can't say I've seen the documentary. What was it about? It sounds like fuzzy science.

[He then makes a bit of a humming noise.]

There's possibly some merit to that. I was born with the ability to control all four elements and I should be able to merge them in someway, but I've got a complete and utter mental block on it because I was told as a child that if I were to use all four, I'd be killed. Been trying for years now... can't do it.