Pedro Ferreira - April 27, 2018 New physics and large scale structure The current model of particles and fields works disconcertingly well. The standard model and general relativity fit existing data to such an extent that we are at a loss on how to move forward. I will argue that, if there is anything new out there, it will generally lead to new forces that can play a role in the formation of cosmic structure. I will explain how we should look for it and what we might find.