diff --git a/a-note-taking-problem-and-a-proposed-solution.md b/a-note-taking-problem-and-a-proposed-solution.md
index 7341e35ae..3ac27af42 100644
--- a/a-note-taking-problem-and-a-proposed-solution.md
+++ b/a-note-taking-problem-and-a-proposed-solution.md
@@ -7,5 +7,6 @@
 
 [//begin]: # "Autogenerated link references for markdown compatibility"
 [go]: go "Go"
+[chris aldrich]: chris-aldrich "Chris Aldrich"
 [do]: do "Do"
 [//end]: # "Autogenerated link references"
\ No newline at end of file
diff --git a/hypothesis-extension.md b/hypothesis-extension.md
new file mode 100644
index 000000000..e3fc5e95a
--- /dev/null
+++ b/hypothesis-extension.md
@@ -0,0 +1,16 @@
+# Hypothesis Extension
+
+- [[pull]] [[hypothes.is]]
+- A [[browser extension]]
+  - [[chrome]] [[vivaldi]]
+    - [[go]] https://chrome.google.com/webstore/detail/hypothesis-web-pdf-annota/bjfhmglciegochdpefhhlphglcehbmek?hl=en
+
+
+[//begin]: # "Autogenerated link references for markdown compatibility"
+[pull]: pull "Pull"
+[hypothes.is]: hypothesis "Hypothesis"
+[browser extension]: browser-extension "Browser Extension"
+[chrome]: chrome "Chrome"
+[vivaldi]: vivaldi "Vivaldi"
+[go]: go "Go"
+[//end]: # "Autogenerated link references"
\ No newline at end of file
diff --git a/journal/2021-01-03.md b/journal/2021-01-03.md
index ed8c944cf..e949e6d74 100644
--- a/journal/2021-01-03.md
+++ b/journal/2021-01-03.md
@@ -5,6 +5,8 @@
   - To all kind hearted [[people]].
 - [[pumpkin soup]] by [[bruno-winck]]
 - [[a note taking problem and a proposed solution]] by [[chris aldrich]]
+- [[hypothesis extension]]
+
 
 
 [//begin]: # "Autogenerated link references for markdown compatibility"