diff --git a/presentation.md b/presentation.md
index dddc35e..f4e694b 100644
--- a/presentation.md
+++ b/presentation.md
@@ -15,7 +15,7 @@ paginate: true
 
 ---
 
-# Quick Disclamer
+# Quick Disclaimer
 
 We are both GNU Guix Users
 
@@ -148,6 +148,7 @@ While we will try to talk about generalities of declarative operating system par
 - Hash is derived from a build dependency graph
     - A program can use any version of a library it needs
     - A program build hash is unique, if any dependency changes the hash will as well.
+    - This means new updates never overwrite old versions
 
 ---
 
@@ -221,4 +222,5 @@ $ readlink /home/tylerm/.guix-home/profile/bin/gcc
     - Build environment
 - Builds are completely isolated from one another
     - You cannot forget to define a dependency
-    - You can guarantee that package will build once you get it working
+    - You can guarantee that package will build for everyone once you get it working
+    - Also means everyone can reproduce the same bugs as you