Concurrency in Go

Atomicity
When something is considered atomic, or to have the property of atomicity, this means that within the context that it is operating, it is indivisible, or uninterruptible

When most people use the word “concurrent,” they’re usually referring to a process that occurs simultaneously with one or more processes. It is also usually implied that all of these processes are making progress at about the same time. Under this definition, an easy way to think about this are people. You are currently reading this sentence while others in the world are simultaneously living their lives. They are existing concurrently to you.