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--- a/README.md
+++ b/README.md
@@ -118,3 +118,34 @@ allowing recursion.
 We might even want to require that a function can be turned into a 'returning'
 function (being pretentious we might prefer calling it 'folding' but anyway) so
 that it can be interfaced from C code, for example.
+
+### Function calls as arguments
+
+At the moment, it's a bit cumbersome to directly pass closure arguments to other
+functions:
+```
+get_some_value() => n;
+do_something_with(n) => ...
+```
+
+If we don't really care about the named variable `n`, it might make more sense
+to provide syntactic sugar like
+```
+do_something_with(get_some_value()) => ...
+```
+
+that translates to the same thing as above, with some internal variable 'name'.
+This would also require that `get_some_value` has some limitations, like a
+single closure argument that consists of a single value. This might be
+particularly significant for condition checking, like
+```
+// assuming this is the form of if statements, as they're still not in the
+// grammar
+get_some_value() => cond;
+if cond {...}
+```
+
+versus
+```
+if get_some_value () {...}
+```