"Practice is much less important to achieving excellence than previously thought. "
...
"It’s practice that makes us better analysts and investors and amplifies the small initial differences."
So practise is not that important according to the meta-study. This interesting.
I have met people with a lot talent and they never bothered to practice and guess what, they got no where.
I agree with you on the ideas generation and how you approach to it, but without trying and making mistakes (deliberate practice) you will be at same level for the rest of your career.