I don’t get it. Why all geeky things must start with a “Hello world!” for purpose?
I try to figure it out, and arrived at an article on Wikipedia, but this article mentioning my terms with a different terms, it was called with “Hello world program” and appears for the first time in “B Language Introduction” by Brian Wilson Kernighan a.k.a Brian Kernighan. It was 1972 and it still the stone age of computer science world. Thinking about peoples were have less or no idea at all, so Kernighans “Hello world program” was one of unintentionally-helpful-geeky-things-to-do.
So when you got no ideas to do when getting started with geeky things, a “Hello world” is worth to try.