As many have noticed the blog is being seriously crushed by the heavy traffic. We are mirroring the content here: http://leaningtech.com/duetto/blog/2013/10/31/Duetto-Release...
EDIT:
After some consideration, I've removed my post. Though the irony is great, the fact is that this is a cool use of LLVM and a pretty interesting thought-experiment made live. I know I wouldn't appreciate the kind of heckling I'd just posted were our roles reversed.
Good work on the technical stuff folks.