Today's rabbit hole: Apparently “the plot thickens” is not a soup metaphor. (Yes I know I should know this.) But FWIW think it would be a really good soup metaphor. WriterThreads https://slate.com/culture/2014/03/the-plot-thickens-the-phrases-etymology-and-origin-at-the-request-of-grand-budapest-hotels-gustave-h.html