This critique of the computational theory of mind and the pan-adaptionist tradition is clearly so honest that it goes after the ideas promoted by Fodor's own 1983 watershed book "The Modularity of Mind". In brief the essay is an attack on massive modularity by saying that there are things after all that escape the programming (encapsulation and opacity are key: how can we talk about something OPAQUE? We know nothing about a few critical things...).
Granted the book is horribly written (that is Fodor's charm after all) but his argumentation is so ferocious that he ends up loud & clear.
The man is critical of his own ideas, and of the current in thought that he he helped create --one may use Fodor-1 against Fodor-2. Perhaps persons I hold in highest respect are those who go after their own ideas!
Bravo Fodor. Even if I do not agree I can't help admiring the man.