Concurrency vs Parallelism: What's the Real Difference and When to Use Each? Alternatively, if you want a sl

Concurrency vs parallelism boils down to *illusion* vs *reality*.

Concurrency: Feels like multitasking (but it’s fast switching).
Parallelism: Actual multitasking (multiple CPUs doing work).

Example: A game might use concurrency for NPC logic (one thread switching tasks) but parallelism for graphics (GPU cores).

For tools, try `Tokio` in Rust for concurrency, `OpenMP` for parallelism.