diff --git a/Concept-paper-2022-02-09.md b/Concept-paper-2022-02-09.md
index 6936c34..3668bb1 100644
--- a/Concept-paper-2022-02-09.md
+++ b/Concept-paper-2022-02-09.md
@@ -62,6 +62,7 @@ Overall this would allow me to construct a probabalistic description of passing
 The probabalistic model could then be used to answer various questions, including causal/structural questions.
 It would also be straightforward to develop simulations from this approach, as the probabilities are right there.
 
+# Data
 # Estimation Strategy
 Probably use a non-parametric (np-bayesian?) approach to estimating the probability densities.