Physicists rewrite a quantum rule that clashes with our universe
Possibly a dumb question, but why does that article state a photon&#x27;s wavelength increases with time? I am paraphrasing the line where they explain how expanding universes suggest black holes cause photons in the thought experiment.<p>Also, if we do chuck out unitarity, does that mean we can &quot;break&quot; experiments like stern Gerlach by just making them take a really long time?