 Let me say a few words about Friends of IHES. Our organization was created in 1999 and our mission of course is to increase the visibility of the IHES in the US and coordinate network of former current visiting scholars and of course to raise funds for the IHES for all of these very important reasons to support fundamental science. And all of our contributions are important, large, small, they all have an essential role to play. I know that founders of the organization are here, Bernard Santana, our first president, many of our board members and the earlier board members are here, thanks to all of you for founding and for your many contributions to making this organization as successful as it has been. And thanks to all of you. So let me now turn to the current director of IHES since 2013, Emmanuel Olma. Could you tell us something more about the IHES and its science and what challenges do you face at the moment? So thanks a lot Mike and thanks a lot all of you for the kind words I heard. I hope you enjoyed the film as I did. We are more than 88 people attending this video, so it's a very good thing for us. So as you probably understood the institute's mission is to provide an ideal environment for scientists to do their research but also to connect and share their ideas. In that regard, the pandemic has affected us quite a bit because the interactions and informal conversations that are also appreciated by our scientists and which regularly led to new ideas and collaborations have been very compromised this year. Normally the institute receives 200 invited researchers who are selected twice a year by our scientific council. The length of the visit varies between two weeks and two years but the average is around two months. During their stay they interact with our six permanent professors who are mathematicians and theoretical physicists all of exceptional level internationally. This year of course the number of visits has decreased and our scientists have had to be creative to keep collaborating with researchers from all across the world and maintain the quality of their partnerships. Seminars and conferences have become virtual and the first time our summer school was held online. One advantage is that it allowed more people to participate. We had about four times more registrations than when we hold the summer school at the institute but of course it lacks the flavor of physical meeting and interactions. Still although it's difficult to travel and therefore to see people in person our global network has proven stronger than ever this year. This event is a testimony in itself of the solidity of our relationships with our American partners. Let me take this opportunity to thanks the friends of IHES and all of those who are watching the event. This year 90% I can see even if in this difficult context our researchers have managed to stay very active and very connected with colleagues from the US and from across the world and the scientific activity although with a different pace and a different form of work is still very dynamic at IHES. I would like to say that IHES is a very important challenge. Apart from it I would say that the main challenge for the institute is to preserve and maintain its model long-term in order to continue to attract the very best minds from all over the world. Speaking of attracting talents promoting diversity, equity and we would like the institute to better reflect how diverse exceptional scientists can be. Those are crucial issues and the support, advice and help from our network especially in the US has also proven to be very precious in that regard. Thank you Emmanuel. So everyone that was very informative but if you have questions there's a Q&A button at the bottom of your screen and we'll try to get to all of the questions at the end. So next like to introduce Slava Richkoff who is a permanent professor at the IHES in physics since 2017. Slava studied in Moscow. He then obtained a PhD from Princeton and held positions in the Netherlands, Italy and in the United States. And then returned to Eichelnarmal and now IHES and possibly and certainly I hope you agree IHES is perhaps your natural home as you started out in mathematics and if one asks how can one combine mathematics and physics at the highest level of both as one of very few places where one can do that.