About the Authors

Keith Baverstock

keith.baverstock@uku.fi (KB); mauno.ronkko@uku.fi (MR)

Affiliation Department of Environmental Science, University of Kuopio, Kuopio, Finland

Mauno Rönkkö

keith.baverstock@uku.fi (KB); mauno.ronkko@uku.fi (MR)

Affiliation Department of Computer Science, University of Kuopio, Kuopio, Finland

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Wrote the paper: KB. Other: Conceived and developed the ideas with the exception of the relvance of Refinement Calculus to the model/hypothesis proposed: KB. Contributed the insight that refinement Calculus was an appropriate modality to deal with the model/hypothesis proposed by the first author: MR.