It's not "practice, practice, practice" but deliberate practice

They were poking fun on JHM, LOL. They see crap from Jack.

 

Haha..I see.

Always wondered how a native speaker could the the crap from him.What a wash traders!

 

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Interesting article and I have seen similar posts on Brett Steenbargers blog. But how is an at-home retail trader supposed to know if he is practicing perfectly and deliberately enough?