I was reading the transcription of Steve Yegge's Dynamic Languages Strike Back presentation, when I noticed this comment when he begins to discuss trace trees:
I'll be honest with you, I actually have two optimizations that couldn't go into this talk that are even cooler than this because they haven't published yet. And I didn't want to let the cat out of the bag before they published. So this is actually just the tip of the iceberg.
What are the optimizations he was referring to?
Update
Several days ago, I asked this question in a comment on the article. However, comment moderation is turned on (for good reasons), so it hasn't appeared yet.
Update
It has been a couple weeks since I first tried to reach the author. Does anyone else know another way to contact him?