You shouldn't need this line here. Line 11 will get the user input and return that input capitalized and without extra white space. So your user_name variable will be stored as capitalized. 

Now, onto the difference between "capitalize" and "capitalize!". The first will return a string that is capitalized, but it won't actually change the string in memory. So for instance if you have code like so:

```ruby
name = "david"
caps_name = name.capitalize
```
if you call caps_name, it will return "David". However if you call name again, it will return "david". Capitalize! is different. calling ```name.capitalize!``` will actually change the value of  ```name```.

Make sense?