Even Java has reflection... :-) What is the Ruby-unique feature not existing in e.g. Moose? (I'm not a real web programmer these days, but is it still common

Even Java has reflection... :-) What is the Ruby-unique feature not existing in e.g. Moose? (I'm not a real web programmer these days, but is it still common to template with code PHP-style, like that?) Edit: Emphasis on my point, since I only got an answer to my humorous note that these days, most languages have reflection functionality.