Full Idea
No further predictive or explanatory power is added by saying that there is in addition a level of deep unconscious rules of universal grammar.
Gist of Idea
Universal grammar doesn't help us explain anything
Source
John Searle (The Rediscovery of the Mind [1992], Ch.10.IV)
Book Reference
Searle,John R.: 'The Rediscovery of the Mind' [MIT 1999], p.244
A Reaction
I would have thought that neuroscientists would be very interested in this prediction, if it were convincing enough. Nothing to stop us from trying to infer the nature of something which is beyond our reach.