  Under simplified axioms on moduli spaces of pseudo-holomorphic curves, we
show that weakly unobstructed Fukaya algebras of Floer-nontrivial Lagrangians
in a compact symplectic manifold must have curvature in the spectrum of an
operator introduced by Dubrovin, which acts on the big quantum cohomology. We
use the example of the complex Grassmannian $\operatorname{Gr}(2,4)$ to
illustrate a decoupling phenomenon, where the eigenvalues of finite energy
truncations become simple under explicit bulk-deformations.
