diff --git a/draft-birkholz-rats-epoch-markers.md b/draft-birkholz-rats-epoch-markers.md
index 7f88f03..315dc17 100644
--- a/draft-birkholz-rats-epoch-markers.md
+++ b/draft-birkholz-rats-epoch-markers.md
@@ -135,6 +135,11 @@ In general, there are three interaction models:
 * unsolicited distribution (e.g., via uni-directional methods, such as broad- or multicasting from Epoch Bells), corresponding to Section 7.2 in {{-rats-models}}
 * solicited distribution (e.g., via a subscription to Epoch Bells), corresponding to Section 7.3 in {{-rats-models}}
 
+In all three interaction models, Epoch Markers can be used as content for the generic information element 'handle'.
+Handles are most useful to establish freshness in unsolicited and solicited distribution by the Epoch Bell.
+An Epoch Marker can be used as a nonce in challenge-response remote attestation (e.g., for limiting the number of ad-hoc requests by a Verifier).
+Using an Epoch Marker requires the challenger to acquire an Epoch Marker beforehand, which may introduce a sensible overhead compared to using a simple nonce.
+
 # Epoch Marker Structure
 
 At the top level, an Epoch Marker is a CBOR array with a header carrying an optional veracity proof about the Epoch Bell and a payload.