diff --git a/src/meta_plugin/system.rs b/src/meta_plugin/system.rs
index b1b2723..4fa6ef4 100644
--- a/src/meta_plugin/system.rs
+++ b/src/meta_plugin/system.rs
@@ -72,6 +72,7 @@ impl BinaryMetaPlugin {
         }
         
         // Final fallback: check printable character ratio
+        // For 1KB of random data, we expect very few printable characters
         Self::calculate_printable_ratio(data) < 0.7
     }