• progressive disciplinary specialization.

Links

• https://www.ted.com/talks/angela_lee_duckworth_grit_the_power_of_passion_and_perseverance
• https://www.wired.com/2011/03/what-is-success-true-grit/
• https://www.tempobook.com/2011/08/17/daemons-and-the-mindful-learning-curve/