diff --git a/content/notes/02-intro-pervasive-and-ubiquitious.md b/content/notes/02-intro-pervasive-and-ubiquitious.md
index 0489e5f76..af38b7713 100644
--- a/content/notes/02-intro-pervasive-and-ubiquitious.md
+++ b/content/notes/02-intro-pervasive-and-ubiquitious.md
@@ -14,12 +14,32 @@ Natural user interfaces
 - better learnability, easure of use. ⇒ support tasks without changing them
 - support special needs people
 
+> [!INFO] computer we wear communicate with more locally installed les ubiquitious computers
+
+
 context awareness
 - apps are aware of the environment around the user/the app and can adjus their behaviour to suit it
 
+> [!INFO] computer should behave in a more natural way
+> [!INFO] also aware of our current goals
+
 automatic capture and access
 - automatically record and store things to remove the burden from humans and allows us to focus on things we are better at
 
 
+# Examples
 
-- 
+context awareness
+![|300](https://i.imgur.com/NpTeqcL.png)
+
+> [!INFO] phone already knows your location
+
+> [!INFO] uses electroculography: eye tracking without a camera. wanted to know if you could build a context aware systems based on eye movements: copy, read, write, video, browse, NULL. They achieved 70%-80% accuracy, WITHOUT using complicated machine learning. 
+
+
+
+![David Lindlbauer, Anna Maria Feit, Otmar Hilliges, Context-Aware Online Adaptation of Mixed Reality Interfaces](https://i.imgur.com/pKl0wQV.png)
+
+> [!INFO] measure cognitive load using pupil dilation. with high cognitive load they show less information on screen to stop from distracting you.
+
+> [!QUESTION] if they block other stuff while we have high workload, how do we deci
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