  The questions of the existence, basic algebraic properties and relevant
constraints that yield a viable physical interpretation of world spinors are
discussed in details. Relations between spinorial wave equations that transform
respectively w.r.t. the tangent flat-space (anholonomic) Affine symmetry group
and the world generic-curved-space (holonomic) group of Diffeomorphisms are
presented. A geometric construction based on an infinite-component
generalization of the frame fields (e.g. tetrads) is outlined. The world spinor
field equation in 3D is treated in more details.
