Spinors and fermions
How spinors on $Y$ become fermions on $X$. The observer never gets 14D fermions on $X$; they get a pulled-back slice of a 14D spinor, decomposed by the tangent/normal split.
Can chirality emerge without imposing a Weyl condition
“Chiral on $X$” is a statement about the pulled-back spectrum in a torsion background, not a constraint pre-imposed on $S_Y$.
Axial torsion as a chirality filter: the mechanism
Axial torsion shifts the effective spectrum so one handedness wins the ground state.
Ground-state fermion content on $X$
This article describes the ground-sector fermionic content induced on $X$ from the ambient spinor pair $(\nu, \zeta)$.
The Effective Dirac Operator and Fermion Flux on the Observer Slice
An overview of dynamics.