I can potentially see an argument about some mechanism that is more likely to be jury rigged off-spec in the field. Or a mechanism that is currently partially malfunctioning.

The best argument around implicit knowledge would be things like "Pure math research". While it is easy enough to get the axioms of maths, it is harder to see how people search the space from videos etc. My best model for how this is transferred between people is that people learn from other people by attempting to do maths and then getting given feedback based upon their me... (read more)