Perl 6 vs Perl 5

Can we have a serious Perl 6 vs Perl 5 thread?

I've been trying to wrap my head around what roles are trying to emulate. Just an odd sort of OO way of programming?'

What else where significant changes?

There are more ways of being able to tell that if(expr) is not a function call. The fact that the Perl devs have reduced this to whether or not there is a space in between if/for/while and the parenthesis is nonsense. It's absolutely unacceptable.

Think about it from a person reading code's perspective. You see an expression in parenthesis, and the word "if" before it. Do you think to yourself "Is that 'if' a function call? I forget the purpose of 'if'. Is it a keyword?" Again, complete nonsense. I expect higher level languages to give me AT LEAST the freedom C gives me. Anything less and it's not worth using.