  Knowledge externalism, at least with respect to accessibility, is generally regarded as just the denial of knowledge internalism. If we had rested content with knowledge internalism as we first stated it, which required some form of accessibility to all of one's knowledge basis, then knowledge externalism would just be the denial of that internalist position. But that would not be an interesting knowledge externalist position. For, denying that one can access by reflection all of one's knowledge basis for a proposition p is perfectly compatible with one being able to access some of one's knowledge basis for p, indeed some essential part of that basis.  Knowledge externalism, however, wants to incorporate the idea that in some cases one cannot access any of one's knowledge basis.  Knowledge externalism, then, aims to deny the partial knowledge basis accounts. As we have two of the latter we will naturally expect to find two versions of externalism with respect to accessibility. A weak version of accessibility externalism for knowledge will deny merely the strong version of AKI, thus: