Well, my math skills are limited and my data-processing skills are essentially nonexistent. The younger guys are way, way beyond me in those areas.
But because that is true, I assumed that these were complex, nuanced, sophisticated systems. I never really looked; I just assumed that the details were out of my depth. But recently i took a look at them, and they’re not very impressive. They’re not well thought through; they haven’t made a convincing effort to address many of the inherent difficulties that the undertaking presents. They tend to get so far into the data, throw up their arms and make a wild guess.