I personally prefer long-distance walking, but we are talking about pre-tournament preparation. During a tournament I make do with walking, mainly to concentrate before a game.
Each match I approach like a new one. The work is so immense that you don't have time to sit and ponder.
Things like the financial markets - a proper grounding in mathematics could help the common man. I believe that if people are more familiar with mathematical concepts... it can help deal with modern life, which is increasingly complex.
A win is a win, which is about that particular moment.
In any match, there are few critical moments where there's no second best decision. The rest of the moves are intuitive.