Tesla finally delivered enough Model 3s in Q4 2019, but it teaches Elon Musk (and us) a lesson on automation
Tesla went through production hell in 2018, thanks to constant delays of the Model 3 shipments. Elon Musk admitted these delays were partly due to the company's overly deployed robotic assembly systems, among many other reasons.
In early 2017, Tesla acquired industrial robotics company Perbix and began integrating its robotic assembly systems into the Tesla factory. However, to save Tesla from the production mayhem, Musk had to remove some of them in 2018 and hire more human mechanics to deliver the Model 3. That strategy, along with many other actions, enabled the company to deliver more Model 3s than promised in Q4 2019.