--- a/slides/Point.scala	Sat Nov 02 21:23:42 2019 +0000
+++ b/slides/Point.scala	Sun Nov 03 14:42:17 2019 +0000
@@ -1,1 +1,1 @@
-class Point(val x: Int, val y: Int)
+case class Point(val x: Int, val y: Int)