Apparently Schrödinger’s Cat wasn't something people knew about until Ursula wrote about it. She knew, because she read about relativity and quantum mechanics while she was writing her physicist character in The Dispossessed.
Ursula K. Le Guin was a shock to me as a young girl... Just the thought that a woman could write fascinating sci-fi, was exciting. Though now it seems like a lifetime ago, her writing was so rich I am not surprised by Schrödinger’s Cat. TY for sharing.
Second story of author research leading to something like this i’ve read today. Other was Susanna Clark’s research for Jonathan Strange and Mr Norrell where she surfaces details of the battle at Waterloo
Having reread The Dispossessed recently for the third time I beg to differ. Relativity, yes, but no traces of quantum mechanics made it into the novel. Incredibly poetic Theory of Simultaneity is perhaps the closest idea but it's incompatible with modern physics.
Much as I love LeGuin as an author, I'm not buying this take.
The science-following "lay public" was getting interested in quantum mechanics around then. For example. Frijoff Capra's rather popular _The Tao of Physics_ was published around then, too, and was more widely known than Ursula's SF.
Schrödinger's cat was a joke.
A reducio ad absurdum demonstration of the nonsense of thinking quantum effects could be macroscopic.
Sadly this is little known.
And here I thought it wasn't possible to admire Ursula K. Le Guin any more than I already do.
I love this quote: "Le Guin wrote in her journal that fantasy as a genre and physics as a science are approaches to reality that reject common sense."