This document shows the importance of a systems view tackling sustainability aspects and ways how you can achieve large impact, without scaling an enterprise. Often we think in impact measurement as "scaling" a venture that solves social or environmental problems. This is one very important way to achieve impact. However, this document shows that "changing" a system can be done in ways that do not need a startup to scale and it helps to remind you of a "systems view" on sustainability impact. You may want to read the preface (page 4), or the five lessons for systems change starting on page 9.