diff --git a/thesis.tex b/thesis.tex
index 54ba02c..744aa7d 100644
--- a/thesis.tex
+++ b/thesis.tex
@@ -14847,6 +14847,17 @@ the captured context and continuation invocation context to coincide.
 \def\N{{\mathbb N}}
 %
 
+Effect handlers are capable of codifying a wealth of powerful
+programming constructs and features such as exceptions, state,
+backtracking, coroutines, await/async, inversion of control, and so
+on.
+%
+Thus, effect handlers are expressive enough to implement a wide
+variety of other programming abstractions.
+%
+We may wonder about the exact nature of this expressiveness, i.e. does
+effect handlers exhibit any \emph{essential} expressivity?
+
 % In today's programming languages we find a wealth of powerful
 % constructs and features --- exceptions, higher-order store, dynamic
 % method dispatch, coroutines, explicit continuations, concurrency