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

IMO, the best way to grok concurrency vs parallelism is to play with it.

Write a tiny program in Python:
- Use `threading` for concurrency (note the GIL limits parallelism).
- Use `multiprocessing` for true parallelism.

You’ll see the difference in speed and complexity. Also, `asyncio` is a game-changer for I/O-bound concurrency.