1 Erratum to: Found Sci (2015) 20:189–198 DOI 10.1007/s10699-014-9359-x

This article was unintentionally published twice in this journal, by the same authors. Following should be considered the version of record and used for citation purposes: “Steven E. Wallis, Abstraction and Insight: Building Better Conceptual Systems to Support More Effective Social Change, Foundations of Science, Volume 19, Issue 4, pages 353–362, DOI:10.1007/s10699-014-9344-4”. The duplicate “Steven E. Wallis, Abstraction and Insight: Building Better Conceptual Systems to Support More Effective Social Change, Foundations of Science, Volume 20, Issue 2, pages 189–198, DOI:10.1007/s10699-014-9359-x” is to be ignored. Diederik Aerts, Editor-in-Chief | Springer, apologizes to the readers of the journal for any inconvenience that this error in the publication process might have caused.