Agreed. I went back and read the original discussion on HN about this blog post and one commenter phrased it as such: You need to learn and memorise 15 facts t

Agreed. I went back and read the original discussion on HN about this blog post and one commenter phrased it as such: You need to learn and memorise 15 facts to fully grok the Java Hello World snippet (including how to compile and run it), for Python it's only four facts. That's a big difference in cognitive load.