Actually Malcolm Gladwell said that in Outlier, and since then there is argument against it and quite convincing ones too. But 10K hours is an average and there is nothing magical about it. Also it is something if you want to have a “professional” world class skill. Many have proven that you can do alright is training much less than 10K hours :)
Do read Outliers
Will do!! As soon as Aomame and Ahmed Sofa lets me:3 Ushikawa just entered like a champ. So might not take much long:))