A prototype is a a preliminary model of something, from which other forms are developed or copied.
 In software, we think of prototypes as early things, or a proof of concept.
 We don't often think of prototyping during daily software development or maintenance. I think we should.
 This episode is about growing better designed software with the help of a prototype mindset.

Links:

• Selecting a programming language can be a form of premature optimization — Brett Cannon's blog post