[globelamp]

First, the book is written by Wade, not by Murray. Second, this is merely the usual selective inability to understand the problem of categorization.

The epicycles are provided by those that seriously push the notion that broad racial cateories have no informational or predictive value. Designing your own “microrace” will of course provide even more pinpoint-accurate information, but that is besides the point.

“Race” is merely a term for what begins where “family” ends (with some inbreeding on top).

[Flame Retardant]

The simple fact is that ignorning the alleged parameter produced more accurate results. Ergo, the paramater ("race") is worse than useless, as it is actively misleading.