Another argument for non-selectionist theories is that grammar is more complicated than it needs to be to fulfil the communicative needs of a hunter-gatherer lifestyle. As one sceptic put it, 'How does recursion help in the hunt for mastodons?' But as Bloom and I pointed out, complex grammar is anything but a useless luxury: "[...] It makes a difference whether that region has animals that you can eat or animals that can eat you". [Steven Pinker]
E' abbastanza umiliante per l'umanità che ancora oggi ci sia bisogno che qualcuno scriva queste cose.