It's often idiomatic. I've never found it to be indecipherable at all. I actually find it to be quite readable in most contexts where intermediate variables are

It's often idiomatic. I've never found it to be indecipherable at all. I actually find it to be quite readable in most contexts where intermediate variables are just noise. Iterators are a typical example of this. vec![0, 1, 2, 3].into_iter() .filter(|x| x % 2 == 0) // Keep the evens .map(|y| y + 1 ) // Add 1 to elements .rev(); // Reverse the iterator Adding intermediates would just add noise for code like this.