But is it really "factually accurate" in trading?
Who studied traders and trading to get to this conclusion?
Any one can say anything, but until you have done it, and very few ever have, it makes no difference because everyone is told it is not factually accurate. There are studies if you search the academics for example, but there are so few of them compared to the 1,000s times more information that it is possible to be a millionaire trading with 100 hours experience, it becomes irrelevant as "factually accurate" is diluted in to obscurity.
If you have done it you know how difficult or easy it is, and you also know 10,000 hours in any discipline is factually accurate, if you haven't done it you presume you are gifted and it is easy, human nature. Everyone looks for 100% probability, doesn't exist, there is always a margin of error. The simple answer I give is in 10yrs let me know how you got on, even with the 10,000 hours you probably won't succeed anyway. If you are provided examples someone will find a margin of error to take it below 100%, and the world keeps turning minus those examples.