try another short phrase

index.html

@@ -12,14 +12,14 @@
 
 	<!-- TRANSLATE: 'name' and 'description' -->
 	<meta itemprop="name" content="The Evolution of Trust">
-	<meta itemprop="description" content="an interactive guide to the game theory of cooperation">
+	<meta itemprop="description" content="an interactive guide to the game theory of why &amp; how we trust each other">
 	<meta itemprop="image" content="http://ncase.me/trust/social/thumbnail.png">
 
 	<!-- TRANSLATE: 'twitter:title' and 'twitter:description' -->
 	<meta name="twitter:card" content="summary_large_image">
 	<meta name="twitter:site" content="@ncasenmare">
 	<meta name="twitter:title" content="The Evolution of Trust">
-	<meta name="twitter:description" content="an interactive guide to the game theory of cooperation">
+	<meta name="twitter:description" content="an interactive guide to the game theory of why &amp; how we trust each other">
 	<meta name="twitter:creator" content="@ncasenmare">
 	<meta name="twitter:image" content="http://ncase.me/trust/social/thumbnail.png">
 
@@ -28,7 +28,7 @@
 	<meta property="og:type" content="website">
 	<meta property="og:url" content="http://ncase.me/trust/">
 	<meta property="og:image" content="http://ncase.me/trust/social/thumbnail.png">
-	<meta property="og:description" content="an interactive guide to the game theory of cooperation">
+	<meta property="og:description" content="an interactive guide to the game theory of why &amp; how we trust each other">
 
 	<!-- Styles -->
 	<link rel="stylesheet" href="css/slides.css">