Full Idea
No serious and principled deduction of the phenomena from the One has ever been given, or looks likely to be given.
Gist of Idea
We can't deduce the phenomena from the One
Source
David M. Armstrong (What is a Law of Nature? [1983], 11)
Book Reference
Armstrong,D.M.: 'What is a Law of Nature?' [CUP 1985], p.15
A Reaction
This seems to pick out the best reason why hardly anybody (apart from Jonathan Schaffer) takes the One seriously.