diff --git a/Nothing-Is-Easy/slides.html b/Nothing-Is-Easy/slides.html
index c1bd7c0..e8d820e 100644
--- a/Nothing-Is-Easy/slides.html
+++ b/Nothing-Is-Easy/slides.html
@@ -1,7 +1,7 @@
 <!DOCTYPE html>
 <html>
   <head>
-    <title>Nil</title>
+    <title>Nothing Is Easy, Is It?</title>
     <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"/>
     <style type="text/css">
       @import url(https://fonts.googleapis.com/css?family=Roboto:100,100i,300,300i,400,400i,700,700i%7CMaitree:200,300,400,600,700&amp;subset=latin-ext);
@@ -271,13 +271,9 @@
 ---
 class: title, middle, center
 
-# Nil
-
 # Nothing Is Easy, Is It?
 
-#### or
-
-## A Talk About Nothing
+## A Talk About Nothing (Nil)
 
 ---
 class: middle
@@ -297,6 +293,10 @@
     * Notes have more info than I'll talk about in some cases.
 * My Twitter is in the upper right corner if you want to tweet at/about me.
     * I'm also on Mastodon, same username, @ruby.social
+* AUDIENCE QUESTION: Who knows the costliest mistake in computer programming?
+    * ANSWER: Null pointers, according to Tony Hoare (who invented them)
+        * It has probably cost businesses several billion dollars over the years
+    * Second most costly mistake is automatic coercion to Booleans
 * AUDIENCE QUESTION: Who has seen a talk on Nil by Sandi Metz or Avdi Grimm?
     * I've got some big boots to fill!
 
@@ -307,15 +307,21 @@
 
 * Basics
 * Nil Parameters
-* Safe Navigation
-* The $Billion Mistake
 * NoMethodError
     * Ruby's take on NullPointerException
+* The Billion Dollar Mistake
+* Safe Navigation
 * Other Anti-Patterns
 * Null Object and Special Case
 * Refactoring
 * Type Safety
 
+???
+
+* I'm going to start with the basics
+* Then some anti-patterns, and why they're problematic
+* Then some better alternatives, and refactoring
+
 ---
 class: transition, basics
 
diff --git a/Nothing-Is-Easy/slides.md b/Nothing-Is-Easy/slides.md
index 03373ac..399ff37 100644
--- a/Nothing-Is-Easy/slides.md
+++ b/Nothing-Is-Easy/slides.md
@@ -13,13 +13,9 @@ layout: true
 ---
 class: title, middle, center
 
-# Nil
-
 # Nothing Is Easy, Is It?
 
-#### or
-
-## A Talk About Nothing
+## A Talk About Nothing (Nil)
 
 ---
 class: middle
@@ -39,6 +35,10 @@ class: middle
     * Notes have more info than I'll talk about in some cases.
 * My Twitter is in the upper right corner if you want to tweet at/about me.
     * I'm also on Mastodon, same username, @ruby.social
+* AUDIENCE QUESTION: Who knows the costliest mistake in computer programming?
+    * ANSWER: Null pointers, according to Tony Hoare (who invented them)
+        * It has probably cost businesses several billion dollars over the years
+    * Second most costly mistake is automatic coercion to Booleans
 * AUDIENCE QUESTION: Who has seen a talk on Nil by Sandi Metz or Avdi Grimm?
     * I've got some big boots to fill!
 
@@ -49,15 +49,21 @@ class: agenda
 
 * Basics
 * Nil Parameters
-* Safe Navigation
-* The $Billion Mistake
 * NoMethodError
     * Ruby's take on NullPointerException
+* The Billion Dollar Mistake
+* Safe Navigation
 * Other Anti-Patterns
 * Null Object and Special Case
 * Refactoring
 * Type Safety
 
+???
+
+* I'm going to start with the basics
+* Then some anti-patterns, and why they're problematic
+* Then some better alternatives, and refactoring
+
 ---
 class: transition, basics
 
