It's a joke, but I'm afraid it's author doesn't seem to think so.

Yes, it's the same joke that Galileo brought to our ancestors: it took the world some decade before accepting a completely new, revolutionary world-view...

You only need to wait some other decade, and it will happen again.

BTW, it's already possible nowadays to mathematically prove that evolution theory is impossible. If you don't shy to read this book, you'll know why.