I'm a Bit Embarrassed by This
Just a day or two after ridiculing “Darwinian believers” who know almost nothing else about science, Ilkka Kokkarinen mentioned the same idea, but used as an example a concept I am not familiar with:
In spirit of Derb's observation of how "belief in evolution" is really just a class marker, as is easily revealed by asking the supposed evolution enthusiast to explain the Fisher-Kolmogorov equation (or even better, simply acknowledge the existence of innate hereditary variation in humans), one easy way to shut these pests up is to ask them to prove that the Mandelbrot set is symmetric with respect to the real axis.
On the other hand, at least I have some idea why the Mandelbrot set is symmetric with respect to the real axis.
On the gripping hand, I suspect the Fisher–Kolmogorov equation is less fundamental than inclusive fitness or hormesis, concepts I did know about.