  This is a position paper for Sharing, Re-Use and Circulation of Resources in
Cooperative Scientific Work, a CSCW'14 workshop. It discusses the role of
software in NSF's CIF21 vision and the SI2 program, which is intended to
support that goal. SI2 primarily supports software projects that are proposed
in response to solicitations, and some of the criteria used by the
peer-reviewers and by NSF in evaluating these projects depend on predicting
scientific impact. This paper discusses some ideas on how the prediction of
scientific impact can be improved.
