  Spinors are central to physics: all matter (fermions) is made of spinors, and
all forces arise from symmetries of spinors. It is common to consider the
geometric (Clifford) algebra as the fundamental edifice from which spinors
emerge. This paper advocates the alternative view that spinors are more
fundamental than the geometric algebra. The algebra consisting of linear
combinations of scalars, column spinors, row spinors, multivectors, and their
various products, can be termed the supergeometric algebra. The inner product
of a row spinor with a column spinor yields a scalar, while the outer product
of a column spinor with a row spinor yields a multivector, in accordance with
the Brauer-Weyl (1935) theorem. Prohibiting the product of a row spinor with a
row spinor, or a column spinor with a column spinor, reproduces the exclusion
principle. The fact that the index of a spinor is a bitcode is highlighted.
