"It is not the strongest of the species that survives, or the most intelligent that survives. It is the one that is most adaptable to change." - Darwin
Listen to this: http://ttbook.org/book/charles-limb-neuroscience-music
I've been thinking for while about how dueling involves 2 distinct, yet parallel and interactive, brain functions - the one that 'does' and the one that 'plans'.
The above link is a radio interview with a neurosurgeon and his work with Jazz musicians.
It's fascinating to hear that the experience of playing improvised jazz with another human is the same as my experience of free sparring/dueling with an opponent. I mean, it is not surprising in the least, the first article I ever wrote about Eskrima was called 'The Art of Conversation', but still most interesting to hear it talked about in these terms.