The East Germans first used biomechanics. This meant that rather than guessing about technique and form, they could apply changes to athletic performance based on science.
Part of filmmaking is always a guessing game, and part of it is always a game of trust.
I'm always interested in trying to investigate different personalities. I want to keep myself guessing and keep the fear element alive, so that I don't get too comfortable.
I think that the training of architects allows you to see what will happen ten years ahead of time, or twenty. It's not guessing, it's not intuitive, it's based on research - and we may be wrong.
Don't keep a man guessing too long - he's sure to find the answer somewhere else.