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 				</section>
 			</section>
 
+			<section>
+
+				<section>
+					<h3>
+						In the name of Codd,<br/><span class="fragment grow highlight-current-blue">thou shalt not give the user a wrong answer.</span>
+					</h3>
+
+					<h4 class="fragment">
+						... but what if we did?  
+					</h4>
+					<h4 class="fragment">
+						What would it take for that to be ok?
+					</h4>
+				</section>
+				<section>
+					<h2>Industry says...</h2>
+				</section>
+
+				<section>
+					<svg height="500px" width="700">
+						<image xlink:href="graphics/maybe-screen.png" x="0" y="0" height="500px" width="282" />
+						<image xlink:href="graphics/maybe-detail.png" 
+							x="418" y="0" height="500px" width="282" height="500px" 
+							class="fragment"
+							data-fragment-index="2"
+						/>
+						<g style="
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+					</svg>
+					&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
+					<p class="fragment" data-fragment-index="5">My phone is guessing, but is letting me know that it did</p>
+					<attribution>Apple iOS 10; Phone App</attribution>
+				</section>
+
+				<section>
+					<img src="graphics/BingTranslate.png" />
+					<p class="fragment">Good Explanations, Alternatives, and Feedback Vectors</p>
+					<attribution>Bing Translate (c.a. 2016)</attribution>
+				</section>
+
+				<section>
+					<h2>Communication</h2>
+					<ul>
+						<li>What data is uncertain?</li>
+						<li>Why is my data uncertain?</li>
+						<li>How bad is it?</li>
+						<li>What can I do about it?</li>
+					</ul>
+				</section>
+
+				<section>
+					<h2>What if a database did the same?</h2>
+					<h4 class="fragment">(they can)</h4>
+				</section>
+				
+			</section>
+
+			<section>
+				<h3>On representing incomplete information in a relational data base</h3>
+				<h4>T. Imielinski &amp; W. Lipski Jr.<span style="margin-left: 40px">(<i>VLDB <span class="fragment grow highlight-current-red">1981</span></i>)</span></h4>
+				<p class="fragment">
+					Incomplete and Probabilistic
+				</p>
+			</section>
+
 
 		</div></div>