diff --git a/Sections/4-Tentations.tex b/Sections/4-Tentations.tex
index a3eba5eba6529afef28f75da983d44957ad94643..018b6f53ddc70a801ed95423b474bdde2522582c 100644
--- a/Sections/4-Tentations.tex
+++ b/Sections/4-Tentations.tex
@@ -32,14 +32,16 @@
 
 \begin{frame}[fragile]
     \frametitle{Choose a research topic}
+    \only<1-> {
     \begin{block}{Question: "Give me 4 hot topics for LBM research"}
     \begin{itemize}
-        \item<1> Turbulence modeling
-        \item<1> Advances in the numerical method
-        \item<2> Quantum fluid mechanics used for quantum computers
-        \item<1> Multi-phase flows
+        \item<1,3> Turbulence modeling
+        \item<1,3> Advances in the numerical method
+        \item<2,3> Quantum fluid mechanics used for quantum computers
+        \item<1,3> Multi-phase flows
     \end{itemize}
     \end{block}
+    }
     \only<3>{
     \begin{block}{The problem?}
     \begin{itemize}