Computer security expert Jacob Appelbaum and renowned computer scientist Donald Knuth demonstrate the recursive homeboys principle.
current iteration:
“We’re recursive homeboys this year, Don.”
“Nested and recursive parens. … We can square it every year.”
previous iteration:
“Oh wait, let me stand behind you. Nested Parens”
“Don, do you mind if I put this on my home page?”
“Gosh no, you’re my homeboy after all!”
“Nested Parens”
The shirt Jacob is wearing in the photo is “Knuth Is My Homeboy” by Geekz Shop. Part of the proceeds from the sale of the shirt go to support the EFF and the FSF.
Has Donald Knuth got your back? Computer scientists need groupies too.
Bold two colour screen print featuring the father of the analysis of algorithms. Is this the Art in the Art of Computer Programming? No
The image on the t-shirt is based on a 2005 photo Jacob shot of Donald.
photos by Jacob Appelbaum




















{ 4 comments… read them below or add one }
Dang, I wish I knew how to hang loose like that. :/
Respect to the man!
you are such a geek, i love it
Awesome!
My girlfriend is a little unnerved by my Knuth shirt. Why? Because Knuth keeps staring at her.
I want that sweater.
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