Awe inspiring stuff! But as a Ruby illiterate, I am left wondering what it is about the Ruby language that draws in such a level of creative / abstract / esoter

Awe inspiring stuff! But as a Ruby illiterate, I am left wondering what it is about the Ruby language that draws in such a level of creative / abstract / esoteric genius to use it as a starting point. Is there something about Ruby in particular, or is just a case of an individual obsessing over a craft?