Why do experiments only exhibit one magic angle if the chiral limit of the
Bistritzer-MacDonald Hamiltonian suggest a plethora of them? - In this article,
we investigate the remarkable stability of the first magic angle in contrast to
higher (smaller) magic angles. More precisely, we examine the influence of
disorder on magic angles and the Bistritzer-MacDonald Hamiltonian. We establish
the existence of a mobility edge near the energy of the flat band for small
disorder. We also show that the mobility edges persist even when all global
Chern numbers become zero, leveraging the C2z​T symmetry of the system to
demonstrate non-trivial sublattice transport. This effect is robust even beyond
the chiral limit and in the vicinity of perfect magic angles, as is expected
from experiments