It is my sincere hope that you've been able to explore, understand, and utilize the depths of Go's powerful abilities with concurrency through this book.

We've gone over a lot, from the most basic, channel-free concurrent goroutines to complex channel types, parallelism, and distributed computing, and we've brought some example code along at every step.

By now, you should be fully equipped to build anything your heart desires in code, in a manner that is highly concurrent, fast, and error-free. Beyond that, you should be able to produce well-formed, properly-structured, and documented code that can be used by you, your organization, or others to implement concurrency where it is best utilized.

Concurrency itself is a vague concept; it's one that means slightly different things to different people (and across multiple languages), but the core goal is always fast, efficient, and reliable code that can provide performance boosts to any application.

Armed with a full understanding of both the implementation of concurrency in Go as well as its inner workings, I hope you continue your Go journey as the language evolves and grows, and similarly implore you to consider contributing to the Go project itself as it develops.