readme

lengyijun · Oct 17, 2024 · d1e32e0 · d1e32e0
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@@ -19,3 +19,8 @@ lake exe sim27
 lake exe sim31
 ```
 
+## Inspiration
+
+[wiki](https://en.wikipedia.org/wiki/Busy_beaver) say 
+
+>  A 43-state Turing machine has been constructed that halts if, and only if, Goldbach's conjecture is false, and a 27-state machine for that conjecture has been proposed but not yet verified.