Originally Posted by x129
I don't follow why you think there should be significant improvement between hours 8k and 10k If the previous 8k hours doing things he doesn't do well hasn't fixed the problem, what is another 2k hours going to do? Between 8k and 10k, I expect dan to do something like raise his putting % from 20 ft from 15 to 20% and things like miss one less fairway per round. Minor things that will add up to a stroke or two a round.
It isn't me that thinks anything. it's Ericsson's theory, not mine. According to his theory, 8000 hours of deliberate practice will produce someone who's performance is 'good', 10,000 hours to produce an expert.
The entire time isn't spent practicing things that one does poorly, but that must be a focus of practice. For example, it was determined that a musician over 60 playing a stringed instrument can be as dexterous/fast as a 20 something if they practice speed exercises 2 hours /day for a year (or two...don't remember). The same musician isn't going to 'get fast' playing the same songs he's been playing for twenty years, though. That's what a lot of golfers do: play/practice the same thing for twenty years without devoting significant time to the weakest portions of their games.
How did Tiger become a wizard with a lob wedge? Back in the day, a part of his warmup was hitting 100 flop shots to start the day. Wizard with a putter? He'd roll ten footers until there was a groove in the green, then move to a different spot. When was the last time you rolled so many putts on the same line, day after day, that you wore grooves in the practice green? That's what it takes to be one of the best putters in the world.
Tiger wasn't born with anything special. He's out-worked - and lapped - everyone in the field. He said it takes him hundreds of thousands of practice balls before he has a new swing down. That's a ton of hours practicing something new