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Concurrency

This was an interesting chapter. The high-level takeaways:

An anonymous function maintains access to the lexical scope in which they are defined
Go can help identify race conditions with race detector go test -race
Coordinating go routines can be accomplished with channels. Channels are a data structure that can both receive and send values. This allows cross go routine communication. Channels have a type, and you will commonly see structs passed around.