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diff --git a/stokes.tex b/stokes.tex
index a851a28..7e5269b 100644
--- a/stokes.tex
+++ b/stokes.tex
@@ -58,6 +58,10 @@ acquires an imaginary component, various numeric and perturbative schemes for
 approximating its value can face immediate difficulties due to the emergence of
 a sign problem, resulting from rapid oscillations coinciding with saddles.
 
+Unfortunately the study is not so relevant for low-dimensional `rugged'
+landscapes, which are typically series or integrals of analytic functions whose
+limit are not themselves analytic \cite{Cavagna_1999_Energy}.
+
 
 \section{Dynamics}