Too Long; Didn't Read
Alan Kay, Dan Ingalls, and Adele Goldberg at Xerox PARC created a revolutionary new programming language called Smalltalk in 1972. It was designed as a purely Object-Oriented language based on the message passing paradigm. Smalltalk is used for writing massive applications like ERP and industrial control systems like silicon wafer fabrication at Lam Research and tiny IoT systems like for Raspberry Pi. It is not uncommon to write a Smalltalk application in a fraction of the time it would take in Python or JavaScript or Java.