Full Idea
On my own view, the context sensivity of knowledge is inherited from one of its components, i.e. justification.
Gist of Idea
The context sensitivity of knowledge derives from its justification
Source
Stewart Cohen (Contextualism Defended (and reply) [2005], 1)
Book Reference
'Contemporary Debates in Epistemology (2nd ed)', ed/tr. Steup/Turri/Sosa [Wiley Blackwell 2014], p.81
A Reaction
That sounds right, and it reinforces the idea that 'justification' is a more important epistemological concept than 'knowledge'. 'Am I justified in believing p?' Answer: 'it depends how well you have researched it'.