in reply to -> Is Optional ?
Yes. See the docs in perlreftut which says :-
In between two subscripts, the arrow is optional.
There is no Extraterrestrial life
There aren't any suitably capable Extraterrestrials
Interstellar travel is too difficult
We're too uncool / not worth the trouble
What do you mean they haven't visited?
Results (514 votes). Check out past polls.