diff --git a/world/objects.py b/world/objects.py
index c6bd3d6..5ad3380 100644
--- a/world/objects.py
+++ b/world/objects.py
@@ -273,9 +273,6 @@ class DefaultCell(BaseEntity):
         :param interactable: List of nearby entities (unused).
         :return: Self.
         """
-        self.tick_count += 1
-        if self.tick_count % 10 == 0:
-            self.behavioral_model = self.behavioral_model.mutate(1)
 
         if interactable is None:
             interactable = []