Over at Discover Blogs I have a very long post up on Jews & Genetics. In particular the recent paper in AJHG. One observation I have to make about Jewish genetics: when it comes to PCA plots which illustrate the relationship of Jews, in particular Ashkenazi Jews, to other populations I’ve noticed that two different individuals can look at the same plot and reach diametrically opposite conclusions. For example, “this plot shows that Jews are European” vs. “this plot shows that Jews are not European,” where “this plot” refers to the same plot. An interesting illustration of the importance of interpretative frames when it comes to distilling the valid inferences from results.