To imagine a world where robots do all the physical work, one simply needs to look at the most ambitious and technology-laden factories of today.

A recent article by research firm CB Insights pointed out that in June 2018, the Chinese e-commerce giant JD.com unveiled a fully automated storage and shipping facility in Shanghai. The factory is outfitted with twenty industrial robots that can pick, pack, and transfer packages with no human presence or oversight.

Without robots, it would take as many as 500 workers to fully staff this 40K square foot warehouse—instead, the factory requires only five technicians to service the machines and keep them working, CB Insights noted.

As industrial technology grows increasingly pervasive, this wave of automation and digitization is being labelled “Industry 4.0,” as in the fourth industrial revolution.