I say things like this a lot in contexts where I know there are experts, but I have put no effort into learning which are the reliable ones. So when someone asserts something about (a) nutritional science (b) Biblical translation nuances (c) assorted other things in this category, I tend to say, "I really don't have the relevant background to evaluate your argument, and it's not a field I'm planning to do the legwork to understand very well."