diff --git a/index.html b/index.html
index 1b35d3d..1924635 100644
--- a/index.html
+++ b/index.html
@@ -43,16 +43,21 @@
       <section>
         <img src="styles/bitcoin.svg" alt="" class="contain">
         <div class="notes">Bitcoin was started on October 31, 2008. Open-sourced Jan 3, 2009. Creator pseudonym Satoshi Nakamoto.
-        Technically not first cryptocurrency, DigiCash came in 1994.
+        Technically not first cryptocurrency, DigiCash came in 1990.
         First <em>decentralized</em> virtual currency.</div>
       </section>
 
       <section>
         <img src="styles/cat-money.jpg" alt="" class="cover">
-        <div janus-timeline class="cover" style="background-color: rgba(0, 0, 0, 0.8)">
+        <div class="cover" style="background-color: rgba(0, 0, 0, 0.6)">
           <h1>What is money?</h1>
         </div>
-        <div class="notes">Durable
+        <div class="notes">
+        Medium of exchange: portable, durable, fungible
+        Unit of account: divisible, fungible
+        Store of value: durable, scarce, fungible
+
+        Durable
         Portable
         Divisible
         Fungible
@@ -61,26 +66,23 @@
 
       <section>
         <img src="styles/seashells.jpg" alt="" class="cover">
-        <div class="cover" style="background-image: linear-gradient(to top, rgba(0, 0, 0, 1), rgba(0, 0, 0, 0))"></div>
+        <div class="cover" style="background-image: linear-gradient(to left, rgba(0, 0, 0, 1), rgba(0, 0, 0, 0))"></div>
         <table class="yesnomaybe">
-          <thead>
-            <tr>
-              <th></th>
-              <th><div>Durable</div></th>
-              <th><div>Portable</div></th>
-              <th><div>Divisible</div></th>
-              <th><div>Fungible</div></th>
-              <th><div>Scarce</div></th>
-            </tr>
-          </thead>
           <tbody>
             <tr>
-              <th>Seashells</th>
-              <td class="maybe"></td>
-              <td class="yes"></td>
-              <td class="no"></td>
-              <td class="no"></td>
-              <td class="no"></td>
+              <th>Durable</th><td class="maybe"></td>
+            </tr>
+            <tr>
+              <th>Portable</th><td class="yes"></td>
+            </tr>
+            <tr>
+              <th>Divisible</th><td class="maybe"></td>
+            </tr>
+            <tr>
+              <th>Fungible</th><td class="no"></td>
+            </tr>
+            <tr>
+              <th>Scarce</th><td class="no"></td>
             </tr>
           </tbody>
         </table>
@@ -89,55 +91,49 @@
 
       <section>
         <img src="styles/Yap_Stone_Money.jpg" alt="" class="cover">
-        <div class="cover" style="background-image: linear-gradient(to top, rgba(0, 0, 0, 1), rgba(0, 0, 0, 0))"></div>
+        <div class="cover" style="background-image: linear-gradient(to left, rgba(0, 0, 0, 1), rgba(0, 0, 0, 0))"></div>
         <table class="yesnomaybe">
-          <thead>
-            <tr>
-              <th></th>
-              <th><div>Durable</div></th>
-              <th><div>Portable</div></th>
-              <th><div>Divisible</div></th>
-              <th><div>Fungible</div></th>
-              <th><div>Scarce</div></th>
-            </tr>
-          </thead>
           <tbody>
             <tr>
-              <th>Rai stones</th>
-              <td class="yes"></td>
-              <td class="no"></td>
-              <td class="no"></td>
-              <td class="no"></td>
-              <td class="yes"></td>
+              <th>Durable</th><td class="yes"></td>
+            </tr>
+            <tr>
+              <th>Portable</th><td class="no"></td>
+            </tr>
+            <tr>
+              <th>Divisible</th><td class="no"></td>
+            </tr>
+            <tr>
+              <th>Fungible</th><td class="no"></td>
+            </tr>
+            <tr>
+              <th>Scarce</th><td class="yes"></td>
             </tr>
           </tbody>
         </table>
+
         <div class="notes">Stone money was made in Micronesia and Guam, transported to the island of <em>Yap</em> as currency. Value from the story of how hard it was to transport. Ownership transferred by oral history, stones not moved.</div>
       </section>
 
       <section>
-        <div class="cover" style="background-image: linear-gradient(to top, rgba(0, 0, 0, 1), rgba(0, 0, 0, 0))"></div>
         <img src="styles/gold.jpg" alt="" class="cover">
-        <div class="cover" style="background-image: linear-gradient(to top, rgba(0, 0, 0, 1), rgba(0, 0, 0, 0))"></div>
+        <div class="cover" style="background-image: linear-gradient(to left, rgba(0, 0, 0, 1), rgba(0, 0, 0, 0))"></div>
         <table class="yesnomaybe">
-          <thead>
-            <tr>
-              <th></th>
-              <th><div>Durable</div></th>
-              <th><div>Portable</div></th>
-              <th><div>Divisible</div></th>
-              <th><div>Fungible</div></th>
-              <th><div>Scarce</div></th>
-            </tr>
-          </thead>
           <tbody>
             <tr>
-              <th>Gold/Silver</th>
-              <td class="yes"></td>
-              <td class="yes"></td>
-              <td class="maybe"></td>
-              <td class="yes"></td>
-              <td class="yes"></td>
+              <th>Durable</th><td class="yes"></td>
+            </tr>
+            <tr>
+              <th>Portable</th><td class="yes"></td>
+            </tr>
+            <tr>
+              <th>Divisible</th><td class="maybe"></td>
+            </tr>
+            <tr>
+              <th>Fungible</th><td class="yes"></td>
+            </tr>
+            <tr>
+              <th>Scarce</th><td class="yes"></td>
             </tr>
           </tbody>
         </table>
@@ -146,26 +142,23 @@
 
       <section>
         <img src="styles/dollars.jpg" alt="" class="cover">
-        <div class="cover" style="background-image: linear-gradient(to top, rgba(0, 0, 0, 1), rgba(0, 0, 0, 0))"></div>
+        <div class="cover" style="background-image: linear-gradient(to left, rgba(0, 0, 0, 1), rgba(0, 0, 0, 0))"></div>
         <table class="yesnomaybe">
-          <thead>
-            <tr>
-              <th></th>
-              <th><div>Durable</div></th>
-              <th><div>Portable</div></th>
-              <th><div>Divisible</div></th>
-              <th><div>Fungible</div></th>
-              <th><div>Scarce</div></th>
-            </tr>
-          </thead>
           <tbody>
             <tr>
-              <th>US Dollars</th>
-              <td class="yes"></td>
-              <td class="yes"></td>
-              <td class="yes"></td>
-              <td class="maybe"></td>
-              <td class="no"></td>
+              <th>Durable</th><td class="yes"></td>
+            </tr>
+            <tr>
+              <th>Portable</th><td class="yes"></td>
+            </tr>
+            <tr>
+              <th>Divisible</th><td class="yes"></td>
+            </tr>
+            <tr>
+              <th>Fungible</th><td class="maybe"></td>
+            </tr>
+            <tr>
+              <th>Scarce</th><td class="no"></td>
             </tr>
           </tbody>
         </table>
@@ -225,7 +218,6 @@
             <tr>
               <th><code>37563EA8932FB</code></th>
               <td>6.0</td>
-              <td><span janus-timeline style="color: #090;">&nbsp;+ 15</span></td>
             </tr>
             <tr>
               <th><code>D163512ECD12E</code></th>
@@ -247,6 +239,7 @@
             <tr>
               <th><code>C5F83ED13497A</code></th>
               <td>6.0</td>
+              <td><span janus-timeline style="color: #090;">&nbsp;+ 15</span></td>
             </tr>
             <tr>
               <th><code>92A1E683111A2</code></th>
@@ -259,6 +252,20 @@
 
       <section>
         <img src="styles/headstone.svg" style="height: 60vh; margin: 0.5em auto 0" alt="">
+        <div class="notes">There's a company that actually did this, called DigiCash. they maintained a ledger with cryptographically controlled balances. Consumers weren't concerned enough about security or privacy and they ran out of money.</div>
+      </section>
+
+      <section>
+        <h1>How to decentralize?</h1>
+        <div janus-timeline class="cover" style="z-index: 1;">
+          <img src="styles/oprah-giveaway.jpg" alt="" class="cover">
+          <h2>You get a ledger! You get a ledger!</h2>
+          <h1>YOU ALL GET A LEDGER!!</h1>
+        </div>
+      </section>
+
+      <section>
+
       </section>
 
       <section>
@@ -322,6 +329,13 @@
         <h1>Smart Contracts</h1>
       </section>
 
+      <section>
+        <h1>Further reading:</h1>
+        <ul>
+          <li><a href="http://money.visualcapitalist.com/infographic-the-properties-of-money/">Infographic: The Properties of Money</a></li>
+        </ul>
+      </section>
+
       <section class="credits">
         <h1>Credits</h1>
         <ul style="font-size: 0.5rem">
diff --git a/styles/blockchain.css b/styles/blockchain.css
index 743e4d2..e3af1b9 100644
--- a/styles/blockchain.css
+++ b/styles/blockchain.css
@@ -16,8 +16,7 @@
 
 table.yesnomaybe {
   border: 0px solid transparent;
-  border-width: 3em 2.5em 0 0;
-  margin: auto auto 5% auto;
+  margin: auto 0.5rem auto auto;
 }
 
 table.yesnomaybe .yes, table.yesnomaybe .no, table.yesnomaybe .maybe {
diff --git a/styles/main.css b/styles/main.css
index a9c7c34..062a1fa 100644
--- a/styles/main.css
+++ b/styles/main.css
@@ -479,7 +479,7 @@ section[janus-timeline='future'] {
 }
 
 body.show-notes {
-  background-color: #777;
+  background-color: #333;
 }
 
 body.show-notes section {
diff --git a/styles/oprah-giveaway.jpg b/styles/oprah-giveaway.jpg
new file mode 100644
index 0000000..d62c434
Binary files /dev/null and b/styles/oprah-giveaway.jpg differ