Think about it not in terms of timing but in terms of instruction. Parallelism requires that different instructions can occur with resource independence. In Jav

Think about it not in terms of timing but in terms of instruction. Parallelism requires that different instructions can occur with resource independence. In JavaScript that requires something like web workers or Node clusters. Concurrency merely means one task does not block another, which is less restrictive and more commonly available through the event loop.