What are concurrency and parallelism?

The Eric Normand Podcast - A podcast by Eric Normand

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What are concurrency and parallelism? What’s the difference? Concurrency is functional programming’s killer app. As we write more and more distributed systems on the web and on mobile, the sharing of resources becomes a major source of complexity in our software. We must learn to share these resources safely and efficiently. That’s what concurrency is all about.