Build, measure, learn: those are the three steps set forth by [Sasha Dichter](http://www.acumenfund.org/about-us/our-team/sasha-dichter.html), Chief Innovation Officer of the [Acumen Fund](http://www.acumenfund.org/ten/), for creating innovation. Opening as the keynote speaker for the 2012 [Unite for Sight Global Health and Innovation Conference](http://www.uniteforsight.org/conference/) held at Yale University yesterday, he did not deny that his plan came with challenges. Building and implementing ideas, measuring their impact and learning from those results can create disruptions at every step of the process. Still, Acumen-funded programs such as [Aravind Eye Care System](http://healthmarketinnovations.org/program/aravind-eye-care-system-aecs) and [LifeSpring Hospitals](http://healthmarketinnovations.org/program/lifespring-hospitals-private-limited-lhpl) were just the disruptions needed to solve key health dilemmas in the world. These disruptive innovations are exactly what are called for today, added [Rifat Atun](http://www3.imperial.ac.uk/people/r.atun) of the Imperial College London. When speaking about innovations in global health, he stated that the public health sector is stagnating in terms of taking on new innovations, and called for more partnerships between the public and private sector, such as the one seen with the [BRAC programs](http://healthmarketinnovations.org/program/bangladeshi-rural-advancement-committee-brac) in Bangladesh. Mr. Atun ended his talk with the following: “We live in a highly dynamic, complex, adaptive system, and we need to move beyond the dominant logic to create these new innovations.” Charles MacCormack, executive chair of the Health MDG Alliance, seconded Atun’s thoughts, calling directly for more private sector action in the health field, predicting its rise as the public sector begins to draw back funding due to economic constraints. _Only 79 of CHMI’s more than 1000 profiled programs are solely publically funded_, showing that implementers and funders are well on this innovative path already. The build, measure, learn concept was also explored by implementers of some of these disruptive programs yesterday. [Sproxil](http://healthmarketinnovations.org/program/sproxil), [Sana](http://healthmarketinnovations.org/program/sana-mobile) and [Project Masilulek](http://healthmarketinnovations.org/program/project-masiluleke-project-m) all spoke of the challenges of creating, testing and implementing new programs. Sproxil, which hopes to eliminate fraudulent medicines through text messages, worked through the barriers of language and technology in order to engage users in a meaningful and effective way. Project Masiluleke on the other hand needed a subtle way to help those battling the stigma of AIDS to take the medicine and receive proper advice and treatment, again found through mobile phone usage. Trial and error helped each of these programs find ways to assist their target groups and disrupt the old paradigms of treatment Without such innovations from the private sector, these patients could be left without the convenient care they so need. These disruptive models and the build, measure, learn system are clearly the way to the future, and it will be important to keep an eye on the private sector for further innovations as care options progress.