That reminds me of the Overton Window: https://en.wikipedia.org/wiki/Overton_window https://en.wikipedia.org/wiki/Overton_window In fact, that quote is on the

That reminds me of the Overton Window: https://en.wikipedia.org/wiki/Overton_window https://en.wikipedia.org/wiki/Overton_window In fact, that quote is on the Wikipedia page!