Working 16bit ALU Implemented in Minecraft
www.osnews.com/story/23845/Working_16bit_ALU_Implemented_in_Minecraft
From the page
Saved with the link. Notes from 2007 to 2016 are mostly the page's own words, so this is probably an excerpt.
Oh and mind you, this is not just a inanimate replica - this is an actual, working and calculating 16bit arithmetic logic unit that had to be debugged in-game. Its creator's next goal is to - I'm not kidding you - build memory to go with the ALU. This is completely and utterly mindbogglingly crazy and insanely awesome all at the same time.