 So it's, you know, mercy ships, mercy hospital ships, but you're a HIV advocate, you're a former WHO representative, you're the fourth. So that's either great position or horrible position, your perspective on what you've heard so far. Thank you very much, Brian. I wish to, first of all, recognize that the Africa continent over the 20 years, the past 20 years, has made significant progress in improving the health of the people. Despite, of course, the disparities between the regions, the disparities between the countries and also within the countries. The Africa continent carries 25% of the global burden of disease, home of almost 20% of the world's population and only 2% of the world's doctors. So many challenges, but there is hope somewhere. In some countries, like Cabo Verde in West Africa, Rwanda in Central Africa, Botswana in the southern part of Africa, and Ethiopia in East Africa. And I would like to highlight what happened in Ethiopia because it's a true success story in health sector strengthening. Because of the political leadership and commitment for change, change for health, leadership for action, and Ethiopia over the past 20 years has made impressive progress in improving the health of the Ethiopian people. Ethiopia just in 2015 concluded health sector development programs from 1997 to 2015 composed of four series of five years. And this amazing work because Ethiopia achieved almost all related millennium development goals in 2015. And this health sector development program was based on the very bold strategy, the health extension program, putting for 5,000 people a health post, managed by two nurses, all women. So in a country where you have 100 million people, it's about 18,000 health posts. That is amazing. And of course- All the way down to the local level. And they do promotion, health promotion, prevention, and they use the new technologies, the smartphone because of the national phone coverage network is used to monitor- Are they networked through digital technology, the 18,000? To monitor the pregnancy, to monitor the child immunization. So it's about promotion, it's about prevention, it's about care. You can do the HIV testing, the health post, you can monitor the TV. That is a package of key essential health services at low level. And at least two nurses in each post. Two nurses are two women. That is very important to see the place of the women to change happening in Ethiopia. And within the community, you also have, it depends on the largest of the, what they call the village. So that is 25 to 45 women leaders within the community, so-called women development army. I was telling the prime minister of Ethiopia, you have maybe the most powerful army in Africa. And he said, ah, no, I said yes. But it's not about the militaries. It's about the women development army embedded in the community being the link between the two nurses and the community. So let me ask you a question about that and then ask everybody to come in on this question. So you've all talked about infrastructure at some level, whether it's human infrastructure or technology or resources, natural resources. What's the infrastructure requirements that you've seen in going to grounds versus being centralized at the top of going to ground? And I wonder if all four of you would think about, does the infrastructure have to be thought about nationally only? I mean, should we be thinking about these approaches regionally and even regionally outside of Africa? So Robert, do you think about an axis from Paris to African countries that are focused on patients that then have to have infrastructure all along? How do you think about infrastructure in this case? And how, as you think about scaling innovation, how should we think about organizing infrastructure going forward? Why does it only have to be national or should it be on that? Of course, maybe Robert will say more. But I don't think that the infrastructure or health facilities must make a difference Of course, we need at all levels, at all low level, at district level, at regional level and at national level. But I don't think it's the people, the human resources are key to make a difference, to improve the health of the people. You can have a beautiful hospital, what we call in French Elefant Blanc, big with everything. But if you don't have the right person, the right doctor, the right nurse, the right midwife, the right place, the health of the people will not be improved. That is my understanding of what we should do in Africa, making sure that we have the people to do the job.