Just In Time works great; that and other efficiencies have brought humanity to a world so cosmically wealthy, so infinitely more developed than robust decentralized green (ie. medieval peasant standard of living) economies, that its inhabitant can lounge around eating bon-bons getting obese while endlessly resharing on social media the same photo of one shop out of thousands being out for a day or two of a luxury as a devastating indictment of Just in Time.