diff --git a/journal/2021-01-23.md b/journal/2021-01-23.md
index 33de7ae55..599d3423b 100644
--- a/journal/2021-01-23.md
+++ b/journal/2021-01-23.md
@@ -6,6 +6,7 @@
   - [[kant]]
   - [[euler]]
     - [[seven bridges of königsberg]]
+- [[walk]]
 
 [//begin]: # "Autogenerated link references for markdown compatibility"
 [agora clients]: ../agora-clients "Agora Clients"
diff --git a/walk.md b/walk.md
new file mode 100644
index 000000000..895db5330
--- /dev/null
+++ b/walk.md
@@ -0,0 +1,4 @@
+# Walk
+
+- https://twitter.com/flancian/status/1352985570079727618
+