I definitely agree that there's a lot to be said for "happy accidents" in the world of art and creative thinking. But the last part of the Ross quote is dangerously false: "Anything that you're willing to practice, you can do." I, for example, am never going to be a competition-level sprinter. (I don't have the requisite skeletal structure.) And LaKwanda and Jamal are never going to write a concerto to equal the least of Vivaldi's (or even Vivaldi's unknown students), nor revolutionize (or even understand) physics, nor build anything remotely equaling the Temple of Artemis (nor, probably, even a plastic model thereof). They don't have the brain structure. We do no one a favor by pretending otherwise.