Mark Zuckerberg

Meta CEO Mark Zuckerberg executed one of the most remarkable business pivots of the decade, slashing $15 billion in metaverse spending after declaring 2023 the "Year of Efficiency" — cutting 21,000 jobs — and pivoting to AI. Meta's stock rose 400%+ from its 2022 lows, adding $800 billion in market cap. Zuckerberg, who cofounded Facebook at Harvard in 2004 at age 19, personally oversees AI model training and product strategy.