One of the aspirations of externalism was to provide an account of justification that fits into a picture of human beings as biological Information processors. This picture views human beings as natural cognitive machines that evolved in response to environmental pressures and whose capacities are oriented toward achieving stability in a changing world. Some may find this conception of humankind depressing or pessimistic. On the contrary, contemporary philosophers tend to consider it a virtue when their views can be made consistent with impressive advances of knowledge about how human beings work. Thus, there has been an effort to make epistemology naturalistic."
Contemporary Theories of Knowledge, Pollock and Cruz, 167