Barnsley argues that these kinds of skewed age distributions exist whenever three things happen: selection, streaming, and differentiated experience. If you make a
coaching and practice. Success is the result of what sociologists like to call “accumulative advantage.” The professional
Because we so profoundly personalize success, we miss opportunities to lift others onto the top rung. We make rules that frustrate achievement. We prematurely write off people as failures.
is that ten thousand hours of practice is required to achieve the level of mastery associated with being a world-class expert—in anything,” writes the neurologist