Reword.

book/src/going_further.md

@@ -28,8 +28,7 @@ project and on [exercism.io](https://exercism.io)'s Rust track.
 Check out [the Rust book](https://doc.rust-lang.org/book/title-page.html) and
 ["Programming Rust"](https://www.oreilly.com/library/view/programming-rust-2nd/9781492052586/)
 if you're looking for a different perspective on the same concepts we covered throughout this course.
-The material doesn't overlap perfectly, therefore you'll certainly learn something new along the
-way.
+You'll certainly learn something new since they don't cover exactly the same topics; Rust has a lot of surface area!
 
 ### Advanced material