Full Idea
Reliabilism cannot specify how reliable a process must be before it grounds knowledge, and it cannot specify what is reliable in the first place. 'Reliable' may become circular, and may mean 'justified'.
Gist of Idea
'Reliable' is a very imprecise term, and may even mean 'justified'
Source
Robert Audi (Epistemology: contemporary introduction [1998], VIII p.225)
Book Reference
Audi,Robert: 'Epistemology: a contemporary introduction' [Routledge 1998], p.225
A Reaction
The first time you ever read an instrument, or talk to a stranger, you have no indication of reliability. Circularity looks like a big problem. Knowledge must precede reliability?