It is a simple fact of nature that, for every action, there is an equal and opposite reaction (thanks, Sir Isaac Newton!). The rule applies to fashion, too. In response to the rise of Barbiecore in all its hot-pink glory this past spring and summer, the fall/winter runways were awash with ultra-wearable neutrals: whites and blacks, chocolates and creams, grays and dark greens. A signature of the perennially cool quiet luxury aesthetic, these sleek shades are making us want to max out on minimalism this season, as demonstrated by Marc Jacobs, Alaia, Paul Smith and Hermès.