40 hour workweeks vs 100 hour workweeks

 “If other people are putting in 40 hour workweeks and you’re putting in 100 hour workweeks, then even if you’re doing the same thing… you will achieve in four months what it takes them a year to achieve.” - Elon Musk, july 14, 2015

40x2.5=100 hours

4 month x 2.5 equal 10 months. But you get the gist of it, right?