Alito's fuzzy math?

Could someone explain this to me? From Newsmax:

Justice Alito: Future Court 50-50 Men, Women

The U.S. Supreme Court will eventually have at least as many female justices as it does male, Justice Samuel Alito told a university class Wednesday.

The Supreme Court has nine justices, so isn't it impossible for the court to be 50-50 in terms of men and women? The most balanced it could ever be is 56% - 44%, which is 5 females and 4 males (or 5 males and 4 females). It can't ever be the same number, can it?

I know, it seems nitpicky, but I'm just curious about it.