diff --git a/presentation/mainmatter/introduction.tex b/presentation/mainmatter/introduction.tex
index ddf6768dbdf9f8be7b6dfdd8c831c3118c46f353..18fa6acf62ce09a41eb465b5ef94052fb192d822 100644
--- a/presentation/mainmatter/introduction.tex
+++ b/presentation/mainmatter/introduction.tex
@@ -104,9 +104,16 @@
       % Drawn first: Structural Materials (bottom layer)
       \node[bubble, fill=fzjblue!15] (struct) at (0,-1.5) {
         \begin{tabular}{c}
-          \textcolor{fzjblue!80!black}{\small construction}\\
-          \textcolor{fzjblue!80!black}{\small aerospace}\\
-          \textcolor{fzjblue!80!black}{\small mechanical}\\
+          % Categorization 1
+          % \textcolor{fzjblue!80!black}{\small construction}\\
+          % \textcolor{fzjblue!80!black}{\small aerospace}\\
+          % \textcolor{fzjblue!80!black}{\small mechanical}\\
+          % \textcolor{fzjblue!80!black}{\small composites}
+          % Categoryization 2
+          \textcolor{fzjblue!80!black}{\small load-bearing}\\
+          \textcolor{fzjblue!80!black}{\small damping}\\
+          \textcolor{fzjblue!80!black}{\small thermal}\\
+          \textcolor{fzjblue!80!black}{\small interfaces}\\
           \textcolor{fzjblue!80!black}{\small composites}
         \end{tabular}
         \vspace{0.2cm}
@@ -120,11 +127,18 @@
 
         \vspace{0.2cm}
         \begin{tabular}{c}
-          \textcolor{fzjred!80!black}{\small semiconductors}\\
-          \textcolor{fzjred!80!black}{\small piezoelectrics}\\
-          \textcolor{fzjred!80!black}{\small classical magnetism}\\
-          \textcolor{fzjred!80!black}{\small catalysts}\\
-          \textcolor{fzjred!80!black}{\small battery materials}
+          % Categorization 1
+          % \textcolor{fzjred!80!black}{\small semiconductors}\\
+          % \textcolor{fzjred!80!black}{\small piezoelectrics}\\
+          % \textcolor{fzjred!80!black}{\small classical magnetism}\\
+          % \textcolor{fzjred!80!black}{\small catalysts}\\
+          % \textcolor{fzjred!80!black}{\small battery materials}
+          % Categorization 2
+          \textcolor{fzjred!80!black}{\small smart / responsive}\\
+          \textcolor{fzjred!80!black}{\small electrochemical}\\
+          \textcolor{fzjred!80!black}{\small electronic / magnetic}\\
+          \textcolor{fzjred!80!black}{\small optical / photonic}\\
+          \textcolor{fzjred!80!black}{\small \dots}
         \end{tabular}
       };
 
@@ -134,9 +148,10 @@
 
         \vspace{0.2cm}
         \begin{tabular}{c}
+          % Categorization 1
           \textcolor{fzjgreen!80!black}{\small topological insulators}\\
-          \textcolor{fzjgreen!80!black}{\small spin-orbit coupling}\\
           \textcolor{fzjgreen!80!black}{\small quantum magnetism}\\
+          \textcolor{fzjgreen!80!black}{\small spin-orbit coupling}\\
           \textcolor{fzjgreen!80!black}{\small strong correlation}\\
           \textcolor{fzjgreen!80!black}{\small superconductors}
         \end{tabular}
@@ -175,9 +190,16 @@
       % Drawn first: Structural Materials (bottom layer)
       \node[bubble, fill=fzjblue!15] (struct) at (0,-1.5) {
         \begin{tabular}{c}
-          \textcolor{fzjblue!80!black}{\small construction}\\
-          \textcolor{fzjblue!80!black}{\small aerospace}\\
-          \textcolor{fzjblue!80!black}{\small mechanical}\\
+          % Categorization 1
+          % \textcolor{fzjblue!80!black}{\small construction}\\
+          % \textcolor{fzjblue!80!black}{\small aerospace}\\
+          % \textcolor{fzjblue!80!black}{\small mechanical}\\
+          % \textcolor{fzjblue!80!black}{\small composites}
+          % Categoryization 2
+          \textcolor{fzjblue!80!black}{\small load-bearing}\\
+          \textcolor{fzjblue!80!black}{\small damping}\\
+          \textcolor{fzjblue!80!black}{\small thermal}\\
+          \textcolor{fzjblue!80!black}{\small interfaces}\\
           \textcolor{fzjblue!80!black}{\small composites}
         \end{tabular}
         \vspace{0.2cm}
@@ -191,11 +213,18 @@
 
         \vspace{0.2cm}
         \begin{tabular}{c}
-          \textcolor{fzjred!80!black}{\small semiconductors}\\
-          \textcolor{fzjred!80!black}{\small piezoelectrics}\\
-          \textcolor{fzjred!80!black}{\small classical magnetism}\\
-          \textcolor{fzjred!80!black}{\small catalysts}\\
-          \textcolor{fzjred!80!black}{\small battery materials}
+          % Categorization 1
+          % \textcolor{fzjred!80!black}{\small semiconductors}\\
+          % \textcolor{fzjred!80!black}{\small piezoelectrics}\\
+          % \textcolor{fzjred!80!black}{\small classical magnetism}\\
+          % \textcolor{fzjred!80!black}{\small catalysts}\\
+          % \textcolor{fzjred!80!black}{\small battery materials}
+          % Categorization 2
+          \textcolor{fzjred!80!black}{\small smart / responsive}\\
+          \textcolor{fzjred!80!black}{\small electrochemical}\\
+          \textcolor{fzjred!80!black}{\small electronic / magnetic}\\
+          \textcolor{fzjred!80!black}{\small optical / photonic}\\
+          \textcolor{fzjred!80!black}{\small \dots}
         \end{tabular}
       };
 
@@ -205,9 +234,10 @@
 
         \vspace{0.2cm}
         \begin{tabular}{c}
+          % Categorization 1
           \textcolor{fzjgreen!80!black}{\small topological insulators}\\
-          \textcolor{fzjgreen!80!black}{\small spin-orbit coupling}\\
           \textcolor{fzjgreen!80!black}{\small quantum magnetism}\\
+          \textcolor{fzjgreen!80!black}{\small spin-orbit coupling}\\
           \textcolor{fzjgreen!80!black}{\small strong correlation}\\
           \textcolor{fzjgreen!80!black}{\small superconductors}
         \end{tabular}