> ... it doesn’t really look original, but more like a polishing of Perl.

Sure, Raku has its roots in Perl. But if multiple dispatch is the big thing for Julia, why wouldn't it be for Raku?

Other things Raku has that Perl doesn't have: - grammars built in, in fact Raku itself uses a Raku grammar to parse itself - a sane and genuine async / multi-thread / event model - Rational arithmetic, big integers and complex numbers by default - lazy lists: say (1..Inf)[42] won't hang - Junctions; a == 42 | 666 | 314 - Gradual typing and coercions

> I am not familiar with Raku, but

Perhaps it's time to familiarize yourself a bit more with Raku :-)