= Smalltalk =
 * https://en.wikipedia.org/wiki/Smalltalk
Smalltalk is an object-oriented, dynamically typed reflective programming language.

Smalltalk environments were often the first to develop what are now common object-oriented software design patterns. One of the most popular is the model–view–controller ([[MVC]]) pattern for user interface design.  

As in other object-oriented languages, the central concept in Smalltalk-80 is that of an object. An object is always an instance of a class. Classes are "blueprints" that describe the properties and behavior of their instances.

A Smalltalk object can do exactly three things:
 * Hold state (references to other objects).
 * Receive a message from itself or another object.
 * In the course of processing a message, send messages to itself or another object.

(...) messaging is the most important concept in Smalltalk: "The big idea is 'messaging'
(...) Smalltalk is a "pure" object-oriented programming language

The message is the most fundamental language construct in Smalltalk. Even control structures are implemented as message sends. Smalltalk adopts by default a synchronous, single dynamic message dispatch strategy (as contrasted to the asynchronous, multiple dispatch strategy adopted by some other object-oriented languages). 

 * https://en.wikipedia.org/wiki/GNU_Smalltalk
 * https://en.wikibooks.org/wiki/Smalltalk_Programming

 * https://en.wikibooks.org/wiki/Smalltalk_Programming/Preliminaries
Smalltalk is a fully object oriented language.

The most important and consistent ideas in the language are that:
 * (1) there are objects
 * (2) send messages to objects 
 * (3) get back an object as the result

 * https://learnxinyminutes.com/docs/smalltalk/
 * https://archive.org/details/byte-magazine-1981-08


 * https://archive.org/details/byte-magazine-1985-05/page/n151
 * https://archive.org/details/byte-magazine-1985-05/page/n153
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 * https://archive.org/details/byte-magazine-1985-05/page/n165