Btw here is what it says in the style guide:

```
There are times when a single expression reaches a length where it becomes unreadable to keep it confined to a single line (usually that length is anywhere above 80 characters). In such cases, the preferred approach is to simply split the expression up into multiple expressions by assigning intermediate results to values. 
```
http://docs.scala-lang.org/style/indentation.html#line_wrapping