Full Idea
The driving force behind foundationalism has always been the threat of an infinite regress.
Gist of Idea
Foundationalism aims to avoid an infinite regress
Source
Bernecker / Dretske (Knowledge:Readings in Cont.Epist [2000], Pt.III Int)
Book Reference
'Knowledge: readings in contemp epistemology', ed/tr. Bernecker/Dretske [OUP 2000], p.231
A Reaction
You could just live with the regress (Peter Klein), or say that the regress fades away, or that it is cut off by social epistemological convention, or the regress circles round and rejoins.