The volatility of today’s job market is a double-edged sword. On the one hand, change can be scary and painful. On the other hand, nothing lights up the human brain like a new learning challenge. A volatile world necessitates “second-skilling”, the deep pursuit of at least one major skill beyond what your current work demands. This necessity can unlock your full potential in ways unimaginable to the previous generation. And the growth of online learning makes it possible to develop many—mayb...