That's total dedication to one thing. I've been thinking about what I would dedicate myself to: yoga, genetics or literature? There are endless possibilities and it all comes down to time and practice. Knowing me, I wouldn't know where to start. I guess I can live with mediocrity in some areas like fencing, skiing or horseback riding. As long as I'm proficient, that's good enough.
What would you dedicate 10, 000 hours to?