Victor Reppert recently said:
It all depends on your priors. I think an argument can be good even when it isn't strong enough such that it ought to convince any unbiased person. An argument might provide some evidence for its conclusion, which might be sufficient or insufficient given someone's personal prior probabilities....The trouble with "unbiased persons" is that you have to go through town with a lantern in broad daylight to find one. Unless, of course, you find the ones who agree with me! :) LINK.In one sense I agree with Vic. We all have priors, that is, background knowledge, the information we have accumulated prior to encountering a new argument. We also have biases. We are prone to so many cognitive biases it's astounding. We don't reason that well because of them. When facing the fact of biases most people will even say they are not affected by them it's so bad. So I agree there are arguments that are good ones even though they cannot convince others. The problem is what Vic thinks this proves. The real problem unaddressed by him is how we can best solve this problem when it comes to debates about his evangelical faith.