harâ¢binâ¢ger. 1. one that announces or foreshadows the approach of someone or something; forerunner; herald. 2. a person sent in advance of troops, a royal train, etc., to provide or secure lodgings and other accommodations. 3. to act as harbinger to; herald the coming of.
Though many people say that technology is useful and helps society, in reality, technology is unhealthy and can cause social and academic problems.
It's a common dystopian sci-fi trope: the robots get better at various tasks, the humans become useless, and suddenly the world's population is unemployed (or dead) as the robots take our jobs and everything is terrible. But this simply won't happen, according to several robotics wonks and investors.