[vram22]

Reading the docs a bit more and/or googling for terms like "perl6 mu" might have helped. I too might have not what Mu meant (in the context of Perl6, although I did know the original meaning), unless I had come across it in the docs or elsewhere.

But IMO, like others have said, it is not really that difficult to figure out what it means (if you know some OOP) (although some of the rarely-used words (e.g. "invocants") get in the way a bit.

Basically when I read your comment, I figured out that the default gist method (even the word "gist" is a clue) was something like a default-valued method (to print the representation of any object) that can be overridden on a case-by-case basis by any other object - something like Python's __str__() and __repr__ special methods, like others have said.

However, having read some of it, I'll have to agree with you that the Perl6 docs can do with some improvement (check out Phasers in the Perl 6 manual for an example of what I mean) - whereas, in contrast, the Perl 5 docs are considered by some (me too) to be good-to-excellent. But then Perl6 has been evolving for less time (yes, I know about the long time for the 1st stable release).