Full Idea
All coherence theories fail, because they are unable to accommodate perception as the basic source of our knowledge of the world.
Gist of Idea
Coherence theories fail, because they can't accommodate perception as the basis of knowledge
Source
J Pollock / J Cruz (Contemporary theories of Knowledge (2nd) [1999], §1.5.3)
Book Reference
Pollock,J.L./Cruz,J: 'Contemporary Theories of Knowledge (2nd)' [Rowman and Littlefield 1999], p.25
A Reaction
An interesting claim, which the authors attempt to justify. They say it is direct realism, because the perceptions justify, without any intervening beliefs. My immediate thought is that they might justify knowledge of primary qualities, but not secondary.