diff --git a/go/delivery/reach.go b/go/delivery/reach.go
index 31aeb51..ad84483 100644
--- a/go/delivery/reach.go
+++ b/go/delivery/reach.go
@@ -84,7 +84,8 @@ type Reach struct {
 // counting whether its health check passes or not; it is empty when a node that wants the module has no running have, or
 // runs a fingerprint not among Changes. Waiting names, in words, every node where the module is not settled (its have
 // different from its want, not running, or not healthy), with or without a floor: health is said here and never moves the
-// floor (ADR 0556 clause 2). A module no node wants has neither.
+// floor (ADR 0556 clause 2). A module whose floor is empty while a node wants it holds no head of the repository back: a
+// reader takes a merge among its Changes as not yet on the machines, with these words. A module no node wants has neither.
 type ModuleReach struct {
 	FP      string   `json:"fp,omitempty"`
 	Nodes   int      `json:"nodes"`