I think part of the issue here had to be that the it’s very difficult to produce robust, actionable results about complex systems of humans. Research (by small

I think part of the issue here had to be that the it’s very difficult to produce robust, actionable results about complex systems of humans. Research (by small teams at universities with limited resources, looking for minimal publishable units, typically) isn’t as effective as it might be for topics where isolated experiments are more possible.