<?xml version='1.0' encoding='UTF-8'?><?xml-stylesheet href="http://www.blogger.com/styles/atom.css" type="text/css"?><feed xmlns='http://www.w3.org/2005/Atom' xmlns:openSearch='http://a9.com/-/spec/opensearchrss/1.0/'><id>tag:blogger.com,1999:blog-5840467.post8896617504742935695..comments</id><updated>2009-05-04T20:55:22.150-07:00</updated><title type='text'>Comments on Cafe Jack: Known Unknowns and Unknown Unknowns</title><link rel='http://schemas.google.com/g/2005#feed' type='application/atom+xml' href='http://cafejack.blogspot.com/feeds/8896617504742935695/comments/default'/><link rel='self' type='application/atom+xml' href='http://www.blogger.com/feeds/5840467/8896617504742935695/comments/default'/><link rel='alternate' type='text/html' href='http://cafejack.blogspot.com/2009/05/known-unknowns-and-unknown-unknowns.html'/><author><name>Jack</name><uri>http://www.blogger.com/profile/02467672322533407965</uri><email>noreply@blogger.com</email></author><generator version='7.00' uri='http://www.blogger.com'>Blogger</generator><openSearch:totalResults>0</openSearch:totalResults><openSearch:startIndex>1</openSearch:startIndex><openSearch:itemsPerPage>25</openSearch:itemsPerPage></feed>