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@@ -12,5 +12,7 @@
 - [[Category Theory]]
   - Continuing reading [[A Rosetta Stone]]: https://via.hypothes.is/https://arxiv.org/pdf/0903.0340.pdf
     - After 1.5y (!) -- time flies indeed.
+    - Re-read [[cobordism]] as it keeps being hard to grasp :) I think I need to review more examples of the [[cobordism]] category?
+      - It's striking that one of the canonical representations of a cobordism looks like a pipe forking. Yesterday night I was reading/writing about [[flow networks]].
   
 I will write [[Building Bridges]] -- some day? What does it mean by now? I've thought about it many times, and by now I wonder if when I actually start writing it it will just flow out from me -- or it won't.