forum 4: week of 30 Jan: DeRose on skepticism

I don't really see any differences between DeRose and Lewis. They still have the same problems in that they seem to be more explaining HOW we use the term "knowledge" in day to day life versus how we use it in philosophy. What I would be interested in knowing would be at what point does one draw the line between plausible to the point that it could be considered and plausible to the point that something is ridiculous and should not even be taken into account when we are asking whether or not we know something.