I was entering the country with a friend of mine I'd been visiting in Jena, Germany (he's American as well) and when he was asked we both got to see the reactio

I was entering the country with a friend of mine I'd been visiting in Jena, Germany (he's American as well) and when he was asked we both got to see the reaction to, "Numerical simulations of the n-body problem." "Uhhh... ok." Was the reply.