In the book “Outliers”, the author Malcolm Gladwell
Correlation Does Not Imply Causation
Malcolm’s books are usually the kind that explains why certain things happen the way they did. That works well for him because he knows that is what readers want. But as the cliche goes, “correlation doesn’t imply causation”.
Many critiques have pointed out how Malcolm misinterpreted his own examples or the research of K. Anders Ericsson, but the other chapters in the book are so well written that most do not go on to examine each chapter separately in a critical manner.
The “10,000-Hour Rule” became the most dangerous meme that a learner can acquire and it definitely is very popular among teachers, trainers or coaches because it is a convenient way to explain why students show little progress.
In closing, as a comparison to the “10-Thousand-Hour Rule”, let me introduce what I call the “10-Million-Dollar Rule” which is based on a hypothetical research:
Research have shown that investors who became billionaires have all invested at least 10 million dollars. This means that the key to become a billionaire, to a large extent, is a matter of having invested a total of around 10 million dollars. This is called the “10-Million-Dollar Rule”. So what are you waiting for? Do the math, figure out how much you need to invest everyday in order to reach the 10-million-dollar mark and start investing now!