diff --git a/slides/10_popularization/main.tex b/slides/10_popularization/main.tex
index 0c029b5..2bbb05b 100644
--- a/slides/10_popularization/main.tex
+++ b/slides/10_popularization/main.tex
@@ -27,7 +27,7 @@
 \end{frame}
 
 \begin{frame}{Quelques ordres de grandeur}
-
+    \todo{}
     \begin{columns}
         \begin{column}{0.32\textwidth}
             \begin{block}{Nombres}
diff --git a/slides/20_foundations/main.tex b/slides/20_foundations/main.tex
index 043a691..2269d0c 100644
--- a/slides/20_foundations/main.tex
+++ b/slides/20_foundations/main.tex
@@ -7,16 +7,16 @@
 
 \begin{frame}{Possible bottlenecks}
     \begin{columns}
-        \begin{column}{0.4\textwidth}
+        \begin{column}{0.37\textwidth}
             \begin{center}
                 \includegraphics[width=\textwidth]{cpu_big_picture_truncate.svg}
             \end{center}
         \end{column}
         \hfill
-        \begin{column}{0.58\textwidth}
+        \begin{column}{0.62\textwidth}
             \begin{tightitemize}{0pt}
                 \begin{itemize}
-                    \item \alert{Frontend:} \uops{} issued not fast enough;
+                    \item \alert{Frontend:} \uops{} not issued fast enough;
                         issuing faster would speed up computation;
                         \bigskip
 
@@ -31,6 +31,11 @@
             \end{tightitemize}
         \end{column}
     \end{columns}
+
+    \pause{}
+    \begin{center}
+        \textbf{\alert{These pieces can (mostly) be modeled independently!}}
+    \end{center}
 \end{frame}
 
 \begin{frame}{Dependencies and the ROB}
@@ -67,6 +72,8 @@
             given CPU
         \item Features microarchitectural models
         \item Most often static analyzers
+        \item Predict at least the \emph{reverse-throughput} of a
+            kernel (cycles per iteration)
         \item May derive further useful metrics, \eg{} bottlenecks, by
             inspecting their model at will
     \end{itemize}
@@ -87,14 +94,13 @@
 
 \begin{frame}{Existing code analyzers}
     \begin{itemize}
-        \item Intel \alert{\iaca{}}: proprietary and only compatible with
-            Intel. First ``good'' code analyzer, now deprecated. Was (is?)
-            widely used.
+        \item Intel \alert{\iaca{}}: proprietary, Intel CPUs only. First
+            ``good'' code analyzer, now deprecated. Was (is?) widely used.
         \item \alert{\llvmmca{}}: FOSS, production-grade, many
             microarchitectures. Based on data from the \texttt{llvm} compiler.
         \item \alert{\uica{}} and \alert{\uopsinfo{}}: research, good accuracy.
-            Intel.
-        \item \alert{\ithemal{}}: machine-learning based. Not so accurate.
+            Intel CPUs.
+        \item \alert{\ithemal{}}: machine-learning based.
         \item \alert{\gus{}}: instrumentation-based code analyzer (not
             static) $\leadsto$ slow. Access to mode information. Made in the
             CORSE team.
@@ -103,3 +109,8 @@
     Except Ithemal, \alert{all} are (to some extent) based on manually-made
     models!
 \end{frame}
+
+\begin{frame}{When I started my PhD\ldots}
+    \centering
+    \includegraphics[height=0.9\textheight]{patate_placeholder.jpg}
+\end{frame}
diff --git a/slides/assets/imgs/20_foundations/patate_placeholder.jpg b/slides/assets/imgs/20_foundations/patate_placeholder.jpg
new file mode 100644
index 0000000..c86e9be
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