From c99fe432172a75a8115176d052502a374c910e25 Mon Sep 17 00:00:00 2001
From: pca006132 <jl@m-labs.hk>
Date: Tue, 15 Dec 2020 18:01:10 +0800
Subject: [PATCH] added comment

---
 README.md | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/README.md b/README.md
index 0b1f861..7e218cd 100644
--- a/README.md
+++ b/README.md
@@ -133,5 +133,6 @@ def bar2(x: list[virtual[Base]]) -> int:
 bar([Base(), Derived()])
 ```
 
-Structural subtyping support is not determined yet.
+Structural subtyping support is not determined yet. Attractive, but probably
+harder and slower.