diff --git a/Concurrent Systems/notes/5 - Software Transactional Memory.md b/Concurrent Systems/notes/5 - Software Transactional Memory.md
index 25eefc2..9836da4 100644
--- a/Concurrent Systems/notes/5 - Software Transactional Memory.md	
+++ b/Concurrent Systems/notes/5 - Software Transactional Memory.md	
@@ -137,7 +137,8 @@ X.read_T(i) :=
 	t_depend_T[X] <- lc(XX).depend[X]
 	
 	if ∃ Y ∈ read_set(T) s.t. t_dependT[Y] < lc(XX).depend[Y] then
-		# non ho capito in che caso si abortisce
+		# abortisco se Y (che avevo letto in passato) nel frattempo
+		# è stato modificato!
 		ABORT
 
 	∀ Y ∉ read_set(T) do