[Following a technical problem, only the end of the seminar is visible] In the framework of the 1st seminar of E3D MICA, my new research group (with Olivier Le Deuff, Franck Cormerais and many others), I presented a programmatic approach to our research projects. If we have lost the capture of my presentation (a paper is being published) the discussion that follows is a rare entry into an informal debate at the heart of the seminar of a science being done. It is in this capacity that I wanted to publish this video.