Could anyone possibly show me simply what is the concept of the bold part? Or, if you can paraphrase the following so that I can get its idea more simply? I couldn't find any article or source as to the following.
Boudry et al. -2010- distinguish two versions of methodological naturalism, which they call intrinsic MN and provisional MN. The distinction turns on whether MN is thought to be a presupposition of science(intrinsic), or simply a strategy that has proven to have good results(provisional). Boudry et al. object vehemently to intrinsic MN, claiming that it undermines the cause of naturalism:it lays defenders of MN open to the accusation of dogmatically excluding the supernatural from science. In contrast, provisional MN is supposed to be warranted in the same way that other scientific hypotheses are warrante--viz.