wtf is zsh doing?

gistfile1.txt

# rake new_post["Zombie Ninjas Attack: A survivor's retrospective"]                                                          root@bohr
zsh: no matches found: new_post[Zombie Ninjas Attack: A survivor's retrospective]
±|master ✘| octopress
±|master ✘| octopress
# rake generate                                                                                                              root@bohr
## Generating Site with Jekyll
unchanged sass/screen.scss
Configuration from /Users/malnick/projects/blog/octopress/_config.yml
Building site: source -> public
YAML Exception reading 2014-01-06-puppet-run-vis.markdown: (<unknown>): could not find expected ':' while scanning a simple key at line 6 column 1
Successfully generated site: source -> public
±|master ✘| octopress
#
 
So generate works, but new_post and new_page get the same error. Not sure what's happening.