diff --git a/basics.html b/basics.html
index 6fdfe529f0496f1001a8b5ed0510ee378d78e447..192552f58d05178e3d64e76d7135684c7a9552aa 100644
--- a/basics.html
+++ b/basics.html
@@ -182,8 +182,7 @@
             - test stuff without interfering
               - throw away if garbage
               - integrate if good
-            - switch back and forth
-            - (done right) decision based on regression testing
+            - switch back and forth without pain
           </section>
 
           <section id="motivation-collaboration-1" data-markdown>
diff --git a/img/motivation-throwaway-playground.dot b/img/motivation-throwaway-playground.dot
index 5b66168ccef7c5094a26a46651eff1f14a8b9411..8fc4cdbd8c4f5335346b8d17cc52611d1e6e6680 100644
--- a/img/motivation-throwaway-playground.dot
+++ b/img/motivation-throwaway-playground.dot
@@ -6,9 +6,9 @@ digraph {
 
         node [color = limegreen]
 
-        master3[label = "ebe0262"]
-        master2[label = "03f4f8d"]
-        master1[label = "62a0ee9"]
+        master3[label = "..."]
+        master2[label = "..."]
+        master1[label = "..."]
 
         master3 -> master2 -> master1
     }
@@ -18,8 +18,8 @@ digraph {
 
         node [color = orchid]
 
-        playground2[label = "8b29f74"]
-        playground1[label = "7f295dd"]
+        playground2[label = "visualization"]
+        playground1[label = "methods"]
 
         playground2 -> playground1
     }