Biodynamic and Organic started around the same time, the former being centered in Germany at the start as it is Steiner's, the latter from what I read was centered in England at first. They are similar, as they evolved Biodynamic is more strict in what they can use. The weird aspects of it are acknowledged by the farmers I know who use it, but they find it works. Steiner himself did not create a dogma but told those he spoke to to test the system he proposed and change it over time. Ehrenfried Pfeiffer was pretty much directed by Steiner to apply modern scientific techniques to the study of it all. The goal was always "does this work" and not "here's the story we can tell about what's going on to make sense of why this might work" so, not making sense is just par for the course. Action at a distance still makes no "sense".