[didibus]

I admit it's a weird way to convince us that something is fast. To tell us you are getting 20fps without context.

Uncle Bob didn't mention any spec about his computer, he didn't say if it's 2D rendered or 3D rendered, if he's using GPU acceleration or not. So I had a look at the code for his game, and it is using a software 2D renderer. That means no GPU acceleration, it is fully rendered on the CPU. It basically uses the default processing.org 2D renderer.

Now, I don't know what spec his computer has, but software only 2D renderers are generally pretty slow. So 20fps isn't bad.

Anyways, I agree it's a weird way to show a language's performance. Like I said, Clojure will run around 10% slower than pure Java in most cases. Which is pretty fast, since Java is arguably the most performant GC language around.