Bickerton's Creole Cooking: Where's the Beef?

Bickerton (1984) claims that creole languages enjoy a special place as exponents of Universal Grammar (UG), and in support of this he propounds two theses, one considerably weaker than the other. The stronger one, which I will address first, is that the properties of UG are exhausted in the properties of creoles. The weaker hypothesis - that creoles merely represent unmarked settings of parameters of UG - we will return to below.