⚔️ Updated some comments.

Those are anecdotes about how I discovered things.

Author: rentruewang

cpp/modern.cpp

@@ -33,10 +33,12 @@ int main() {
 
     // This should be UB.
     function<int(void)> y{nullptr};
+
     {
         auto x{make_shared<int>(4)};
         y = f(x);
     }
+
     cout << y() << endl;
 
     // This is uninitialized.

python/src/variance.py

@@ -462,7 +462,8 @@ def attack_and_defend(self) -> None:
 
 def codependent_generic():
     # Using generic to solve this.
-    # I think I noticed this is possible by reading the source code of spark.
+    # I think I noticed this is possible by first thinking how `typing.Self` is implemented,
+    # then expanded horizons by reading the source code of spark.
     _B = TypeVar("_B", bound="B")
     _A = TypeVar("_A", bound="A")