Full Idea
I think the most promising skeptical strategy is to insist on either identity or elimination wherever grounding is alleged to hold.
Gist of Idea
The best critique of grounding says it is actually either identity or elimination
Source
Paul Audi (Clarification and Defense of Grounding [2012], 3.9)
Book Reference
'Metaphysical Grounding', ed/tr. Correia,F/Schnieder,B [CUP 2012], p.121
A Reaction
This comes after an assessment of the critiques of grounding by Oliver, Hofweber and Daly. So we don't say chemistry grounds biology, we either say biology is chemistry, or that there is no biology. Everything is just simples. Not for me.