Summary
Crystal delivers very well on performance, stability, and usability. It is a complete language with a growing community and ecosystem that can be used in production today. Crystal is highly innovative and has all the components of a successful programming language.
Knowing how to create and run Crystal programs will be fundamental in the following chapters, as there will be many code examples for you to try.
Now that you know about Crystal's origins and the significant characteristics of the language (namely its expressiveness and performance), let's move forward to learn the basics of programming in Crystal and get you started and productive in the language.