Fear is the most expensive emotion. It costs you time, opportunity, and the future you could have built. Trade fear for curiosity. - Peter Diamandis

Ultimately, it doesn't matter how cheap solar gets unless we can store that energy, and storage on this scale has never been achieved before. Grid-level storage requires colossal batteries. Today's lithium-ion batteries are woefully inadequate. Their storage capacity would need to be improved ten- to twentyfold, and — if we really want them to be scalable — they have to be built from Earth-abundant elements.

We live in an exponential era. This kind of disruption is a constant. For anyone running a business — and this goes for both start-ups and legacy companies — the options are few: Either disrupt yourself or be disrupted by someone else.

Yet for these high, hard goals to really work their magic, Locke and Latham found that certain moderators — the word psychologists use to describe "if-then" conditions — need to be in place. One of the most important is commitment. "You have to believe in what you're doing," continues Latham. "Big goals work best when there's an alignment between an individual's values and the desired outcome of the goal. When everything lines up, we're totally committed — meaning we're paying even more attention, are even more resilient, and are way more productive as a result."