Full Idea
In modern epistemology the three strategies to rebut the sceptic are 1) epistemological externalism, 2) the 'relevant alternative account of knowledge' (that scepticism is too extreme to be relevant), and 3) semantic externalism.
Gist of Idea
Modern arguments against the sceptic are epistemological and semantic externalism, and the focus on relevance
Source
Bernecker / Dretske (Knowledge:Readings in Cont.Epist [2000], Pt.IV Int)
Book Reference
'Knowledge: readings in contemp epistemology', ed/tr. Bernecker/Dretske [OUP 2000], p.302