Categories Articles The 5-Hour Rule Used by Bill Gates, Jack Ma and Elon Musk Post author By crystalg Post date November 4, 2019 Entrepreneur Tags 5hour, Bill, Elon, Gates, Jack, Musk, Rule, used ← Airbnb bans ‘party houses’ following Orinda shooting → BANKING AND PAYMENTS FOR GEN Z: These digital natives are the next big opportunity — here are the winning strategies