diff --git a/notsof.md b/notsof.md
index e83d12e2c..900d5135e 100644
--- a/notsof.md
+++ b/notsof.md
@@ -108,4 +108,5 @@
    
 ## Solution
 - the tension between form-making (integration) and analysis (fragmentation) is resolved by "finding knots": problems are not homogeneous, they actually have some structure, so there are right ways to tackle them.
-  - reminds me of [[computational complexity]]
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+  - reminds me of [[computational complexity]]
+- well decomposed sets will tend to be densely connected internally but have few or no links (the latter usually being not achievable) between sets
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