Abstract
The definition of precision medicine has continued to evolve, partly in response to criticism of the original concept. However, whatever the definition or current state of the brand, it fundamentally relies on a putatively tight linkage between genotype and complex human traits. If such a linkage is truly robust, then it should be possible to predict the occurrence of complex traits, both good and bad. If such prediction is possible, it should also be feasible to intervene to prevent or preempt disease-related traits. There are of course many potential barriers to this sort of genomic medicine two-step. For example, a number of statistical considerations make generating biomarker (including gene...