Harari wants to argue that life wasn’t necessarily tougher and harder for ancient foragers living without modern conveniences. He suggests that modern-day laborers suffer more than ancient foragers did—both physically and mentally. Physically, he thinks modern laborers work more hours each week, which leaves them more tired, and they suffer from more food insecurity, meaning they’re likely more malnourished and therefore likely suffer more disease. Mentally, he thinks a forager’s work is much more interesting and satisfying than industrial labor, suggesting that modern-day laborers not only work harder, but their work is more boring, which makes them unhappy.