90 degree angles are practical for avoiding wasted space
*rectangles
squares compose easily in 2d, and qubes in 3d
we understand them easily, and their composition easily
they are one of the simplest shapes we know of
so the objects don't slide
stacking works because the plane of the qubes are perpendicular to gravity
qubes also compose well wrt. gravity: stacking
because: gravity
.. everything that stands perpendicular on the earths surface
90 degree angles actually happen in nature
e.g. a saw can cut a line, and you just make 4 cuts
it's easy to create a rectangle
because efficiency often wins over other priorities
.. we do it in the simplest way possible
we are a race that makes tools and objects that compose and scale
why do we make these?
see the rectangles _everywhere_?
.. observe your surroundings
think
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