Limitations encourage creative thinking, which is why these microscale cities have the self-imposed constraint of a 20 x 20 base. This build, however, made me realize I am fooling myself as far as limitations are concerned. A mathematician recently calculated that six 2 x 4 @lego bricks can be put together in almost 1 billion different combinations. This Habitat 67 inspired city is made of 27 cubes, which presumably have billions of different ways to fit together. It turns out the main limitatio
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