For anyone that hasn't heard, the "10 thousand hour" catch phrase was created be Malcom Gladwell in his book [Outliers], when Malcom misunderstood the research

For anyone that hasn't heard, the "10 thousand hour" catch phrase was created be Malcom Gladwell in his book [Outliers], when Malcom misunderstood the research results of Anders Ericsson. Ericsson has gone so far as to dedicate an entire six-page section in his 2017 book [Peak] to a discussion of [Outliers]'s popularization of the catch phrase "the ten thousand hour rule". In the section he lists three reasons why this phrase is misleading, and one way in which it is accurate. The central theme of [Peak] is to review what things all experts have in common, irrespective of their varied fields: these being a habit of deliberate, purposeful practice and mental maps. [Peak] Peak: Secrets from the new science of Expertise by Anders Ericsson and Robert Pool [Outliers] Outliers by Malcom Gladwell