I don't think anyone is asking for a double-blind study conducted by accredited scientists from multiple leading institutions on a sample of a quarter-million p

I don't think anyone is asking for a double-blind study conducted by accredited scientists from multiple leading institutions on a sample of a quarter-million people across decades getting published on the front page of Science here. We, since I will gladly agree with the criticism and add myself to that side, are asking for one example of the supposedly creativity-inducing action to have even perhaps tangentially produced some sort of creative insight. As an example I would submit that the simple advice of "take a walk/shower" has much better attestation for prompting creativity than "read the obituaries". It hardly seems like a stretch to ask the author to provide even a single example of this achieving something.