Putting a space in between the method name and parens makes the parens behave as a grouping construct. It'll work here (accidentally), but try:

```ruby
def foo(bar, bar2)
  puts bar
end

# notice fooSPACE(:baz, :baz2)
foo (:baz, :baz2)
```

You get:

```
syntax error, unexpected ',', expecting ')'
foo (:baz, :baz2)
          ^
```