“Musk let loose a bitter laugh when he heard the phrase “psychological safety.” It made him recoil. He considered it to be the enemy of urgency, progress, orbital velocity. His preferred buzzword was “hardcore.” Discomfort, he believed, was a good thing. It was a weapon against the scourge of complacency. Vacations, flower-smelling, work-life balance, and days of “mental rest” were not his thing. Let that sink in.”