Eh, I'm not overly proscriptive that science answers all the questions, or that it has the precision people think that it does. OTOH, it has been important for

Eh, I'm not overly proscriptive that science answers all the questions, or that it has the precision people think that it does. OTOH, it has been important for civilizational science, so I'm pretty comfortable saying that it's a good option. More germane to the point, it's probably better to think about "ground truth" as "sufficiently reasonable approximation for the grain that I need to operate at".