The original title is 11 words: "Share Memory by Communicating: When a Channel Beats a Mutex in Go"

Short summary

The Go proverb 'share memory by communicating' is a design hint, not a rule that channels always beat mutexes. Use mutexes when data stays in one place with multiple readers/writers; use channels when ownership transfers from producer to consumer. Choose based on data movement, not dogma.

• •Channels transfer ownership (pipelines, worker pools); mutexes guard shared state (counters, caches)
• •The Go proverb is guidance, not law—both primitives exist for good reasons
• •Ask: does the data stay put or move? That determines which synchronization primitive to use

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