diff --git a/src/standard-library-types.md b/src/standard-library-types.md
index 8be6d96..8a40ca2 100644
--- a/src/standard-library-types.md
+++ b/src/standard-library-types.md
@@ -41,6 +41,13 @@ not preserve ordering, but is O(1).
 equivalent method for other collection types such as `String`, `HashSet`, and
 `HashMap`.
 
+If you need to create a `Vec` filled with zeroes, the fastest way to do so
+is `vec![0; length]`(https://doc.rust-lang.org/stable/std/macro.vec.html).
+Unlike creating a `Vec` and then filling it with zeroes, this requests
+pre-zeroed memory from the OS, which usually has some on hand,
+so you don't have to spend time zeroing it yourself.
+This is the fastest way to obtain a zero-initialized `Vec` or slice.
+
 [`Vec::remove`]: https://doc.rust-lang.org/std/vec/struct.Vec.html#method.remove
 [`Vec::swap_remove`]: https://doc.rust-lang.org/std/vec/struct.Vec.html#method.swap_remove
 [`Vec::retain`]: https://doc.rust-lang.org/std/vec/struct.Vec.html#method.retain