We are launching a new Scholar programme about environmental threats to health, with an initial focus on radiation. (I mapped out what this might look like in 2017.) As part of the launch, we are enlisting support of immunization colleagues. Our immunization programme is our largest and most advanced programme, and still growing fast since its inception in 2016. At The Geneva Learning Foundation, we have spent 5 years pouring mind, body, and soul into building what has become the largest digital platform for national and sub-national immunization leaders. Along the way, we discovered that it is not only about scale. Social Network Analysis (SNA) by colleagues Sasha Poquet and Vitomir Kovanovic at the Centre for Complexity and Change in Learning is now helping us to understand the power in the relationships not just one-to-many but many-to-many across the network. Yes, there is a linkage as most vaccines are for …