Beautiful Evidence is about the theory and practice of analytical design.
I am certainly not an intellectual relativist, nor a moral relativist.
A metaphor for good information design is a map. Hold any diagram against a map and see how it compares.
That is to say, nature's laws are causal; they reveal themselves by comparison and difference, and they operate at every multivariate space, time point.
If you’re told what to look for, you can’t see anything else.
In general, I think audiences are a lot smarter than people think. So, it's not "know your audience", it's "respect your audience, and really know your content".