Yes, It's not "gullibility", it's believing things in terms of the mechanism of standard argumentation.
The basic thing is that arguments involve mustering a series of plausible explanation for all the visible pieces of evidence, casting doubt on alternatives, etc. Before Galileo, philosophy had a huge series of very plausible explanations for natural phenomena, many if not all of which turned out to be wrong. But Galilean science didn't discover more by getting more effective arguments but by looking at the world, judging models by their simplicity and ability to make quantitative predictions and so-on.
Mathematics is pretty much the only place where air-tight arguments involving "for all" claims actually work. Science shows that reality corresponds to mathematical models but corresponds only approximately and so given a model-based claim can't be extended with an unlimited number of deductive steps.
The basic thing is that arguments involve mustering a series of plausible explanation for all the visible pieces of evidence, casting doubt on alternatives, etc. Before Galileo, philosophy had a huge series of very plausible explanations for natural phenomena, many if not all of which turned out to be wrong. But Galilean science didn't discover more by getting more effective arguments but by looking at the world, judging models by their simplicity and ability to make quantitative predictions and so-on.
Mathematics is pretty much the only place where air-tight arguments involving "for all" claims actually work. Science shows that reality corresponds to mathematical models but corresponds only approximately and so given a model-based claim can't be extended with an unlimited number of deductive steps.