 Since coherentism can be construed in different ways, it is unlikely that there is one single objection that succeeds in refuting all possible versions of coherentism. Doxastic coherentism, however, seems particularly vulnerable to criticism coming from the foundationalist camp. One of these we considered already: It would seem that doxastic coherentism makes excessive intellectual demands on believers. When dealing with the mundane tasks of everyday life, we don’t normally bother to form beliefs about the explanatory coherence of our beliefs or the reliability of our belief sources. According to a second objection, doxastic coherentism fails by being insensitive to the epistemic relevance of perceptual experiences. Foundationalists could argue as follows. Suppose Kim is observing a chameleon that rapidly changes its colors. A moment ago it was blue, now it’s purple. Kim still believes it’s blue. Her belief is now unjustified because she believes the chameleon is blue even though it looks purple to her. Then the chameleon changes its color back to blue. Now Kim’s belief that the chameleon is blue is justified again because the chameleon once again looks blue to her. The point would be that what’s responsible for the changing justificatory status of Kim’s belief is solely the way the chameleon looks to her. Since doxastic coherentism does not attribute epistemic relevance to perceptual experiences by themselves, it cannot explain why Kim’s belief is first justified, then unjustified, and eventually justified  again.[51]