Ola, on The lactose reflux problem:
Introgression from Neanderthals as a source of adaptive variation is a fascinating hypothesis; I like the idea that Homo sapiens have benefited from alleles from wild relatives. Recent adaptation and all the signs of positive selection in human population following the shift to agriculture based diets expose the fallacy of proponents of the Paleolithic diet … not to mention all the doctor Atkins disciples out there.
Time for a genome sweep.