I know that there can be no real exact figure put on the amount of time that it would take somebody to become proficient at meditation; after all people will progress at different rates. I also realise that just clocking up the hours isn't the best way to approach meditation (a bit unBuddhist), but... I do feel that somebody who has meditated for 10,000 hours will be at least somewhat more advanced in meditation and have the concentration levels to move further along the path. If you meditated for two hours a day it would take about 14 years of practice.
I think the idea of 10,000 hours to becoming an expert came from Malcolm Gladwell. These numbers also seem important to scientists who like to conduct experiments on experienced meditation practitioners who have practiced for thousands of hours.
I don’t take the goal too seriously, but it is a target I’d like to accomplish; not that I expect to hear trumpets or anything when that goal is reached. I suppose it is possible to put 10,000 hours into going in the wrong direction. What do other people think of a 10,000 hour meditation goal for laypeople?