Zuckerberg challenged the myth of the eureka moment, calling it 'a dangerous lie' that makes people feel inadequate and prevents those with seeds of good ideas from beginning. He pointed out that if he had needed to understand everything about connecting people before starting, Facebook would never have existed. Movies, he said, get innovation completely wrong — and no, nobody actually writes math formulas on glass. The real process is messy, iterative, and requires the courage to start before you have all the answers.