I'm not sure that that characterization of Heisenberg's dependence on Einstein's work is accurate. But this is not a physics forum, so we probably should not get into it here. Maybe you're making a very subtle pun regarding the uncertainty principle. If so, how very amusing. I will be pondering that little twist for a while.
I think there was the same kind of atmoshpere, anyway, among these physicists (Einstein, Heisenberg, and the boys (and girls)) as there was among the fiction writers (The Inklings). They would get together in sort of a pub setting and share their latest objects of research, and play silly intellectual games to lighten the mood.
(BTW, I think I should change Heisenberg to Bohr in order to get the pair to match Tolkien and Lewis better. I think I was initially confusing Heisenberg with Bohr.)