- core hacking that's vastly simpler and more likely to be accepted than Perl 5 core hacking
- using Perl 6 when it's a lot faster
(This may well not include chromatic.)
For example, Larry Wall declaring speed to be the #1 blocker of adoption in November.A lot of people have declared a lot of things over the lifetime of the project. Most of them haven't happened. I will believe them when I see them.
Larry Wall isn't just a random person and he wasn't declaring that anything has happened. He's the leader of the Perl 6 project, he focused attention, and #perl6 folk listened. (Another example: Moritz forgot to mention he added sink (void) processing in late December, something that had been on the todo list for many years and which makes most code in void context a lot faster.)