To become a chess grandmaster also seems to take about 10 years. (Only the legendary Bobby Fischer got to that elite level in less than that time: it took him nine years.) And what’s 10 years? Well, it’s roughly how long it takes to put in 10,000 hours of hard practice. Ten thousand hours is, of course, an enormous amount of time. It’s all but impossible to reach that number, by the time you’re a young adult, all by yourself. You have to have parents who are encouraging and supportive. You can’t be poor, because if you have to hold down a part-time job on the side to help make ends meet, there won’t be enough time left over in the day. In fact, most people can really only reach that number if they get into some kind of special programme - like a hockey all-star squad - or get some kind of extraordinary opportunity that gives them a chance to put in that kind of work.