"Remove quitting from your option set entirely When asked where he finds the psychological strength to persist on nearly impossible engineering problems that experts before him have failed to solve, Musk rejected the framing of needing a "source of strength": "quitting is not even — that's not in my nature" and "I don't care about optimism or pessimism, fuck that, we're going to get it done." The actionable insight is structural, not motivational — if you never place quitting in your decision tree, you stop spending cognitive energy evaluating it, which frees resources for execution. Source: Elon Musk, Lex Fridman Podcast, Elon Musk"