Hi Arphy,
barminologists do try to work out these bounderies, but this doesn't ever mean that their results are conclusive. They can give us a rough idea which can be helpful, but they are also open to revision.
Doesn't this make you in the least bit sceptical? After all, these "baramins" are real biological boundaries. They are not in the least bit arbitrary (as one might argue Linnaean taxonomy to be), they are absolute, impenetrable divisions of life - yet we can't detect them.
That just sounds a bit odd to me. Why are these baramins so elusive? Surely it couldn't be that a flexible baramin is more expedient in producing apologetics? Could it?
Mutate and Survive
"A curious aspect of the theory of evolution is that everybody thinks he understands it." - Jacques Monod