This isn't really a question that could've been asked at the time of this interview, but there was recently an experiment done that suggests there very well might be a fifth fundamental force that we were previously unaware of. As part of the article I read, it said that it might contain in it an explanation for the phenomena we attribute to the black box that is dark energy. I would have loved to follow up the dark energy discovery at the start of an interview with how this new possible revelation changes our world view, as well as how we should think about the chances that it is actually true that this is a fifth force.
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Hi Zev, I though this was a really interesting question especially as we think about the question of uncertainty in our models for astrophysics and the fundamental forces that govern our universe. I was wondering how we might go about determining the uncertainty and impact of forces that we haven't even accounted for in our models. How does testing the extremes about what we know about material behavior such as the experiments that take place in the CERN Large Hadron Collider play into pushing the limits of these models? It seemed that Professor Loeb was optimistic for our future prospects.