"A language which is hard to parse for a computer is often hard to parse for a human."
Whether it often is the case isn't relevant. It may be possible, or even necessary, to make a language hard to parse in order to make it better for the programmer.
Otherwise, by your logic LISP is by definition the best programming language. That maybe be true, but I'm not sure if you would follow your own logic to it's logical conclusion.
"LISP is by definition the best programming language"
Well, that's exactly right, it is the best! Not sure for the GP but I would follow this logic to this conclusion happily :)
Um, er... Sorry, I just recently wrote my first program in Lisp (in Racket exactly) that was something more than a few tens of lines of code and am very happy because of this and I couldn't resist posting this here :)
There was no claim that a language that is easy to parse for a computer is always easy to parse for a human. And you don't present any data that easier to parse for the human makes it better other than that you like it.
I like Ruby too, it's actually my favorite language because it's so easy to do metaprogramming, but sometimes I wish it were clearer what the execution will be even if that comes at the expense of some clarity elsewhere.
Whether it often is the case isn't relevant. It may be possible, or even necessary, to make a language hard to parse in order to make it better for the programmer.
Otherwise, by your logic LISP is by definition the best programming language. That maybe be true, but I'm not sure if you would follow your own logic to it's logical conclusion.