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kbenson
on Jan 12, 2014
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Meanwhile, at code.org
Yeah, The first time I saw it was back in late 2011 when
Up and Down the Ladder of Abstraction
[1] was linked. After viewing the main site, and sharing it with some friends and co-workers, the feeling was almost unanimous.
[1]:
http://worrydream.com/LadderOfAbstraction/
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[1]: http://worrydream.com/LadderOfAbstraction/