Full Idea
A problem with pure externalism is that it ignores the social dimension of knowledge.
Gist of Idea
Externalism ignores the social aspect of knowledge
Source
Michael Williams (Problems of Knowledge [2001], Ch. 2)
Book Reference
Williams,Michael: 'Problems of Knowledge' [OUP 2001], p.36
A Reaction
This seems to be contradicted by Idea 3573, which allows a social dimension to agreement over what is reliable. I am inclined to take knowledge as an entirely social concept.
Related Idea
Idea 3573 Externalist reliability refers to a range of conventional conditions [Williams,M]