Science as we know it today owns its classifications from how scientists viewed and understood science in the 19th century and before. As the scientific understanding have progressed the fundamental laws of chemistry and physics, as well as other areas of science, have been unified. In computational science this is more evident than anywhere else -chemistry and physics simulations use the very same fundamental numerical methods and strategies. This calls for reflection and a possible reclassification of the fields of chemistry and physics. At first sight this might seem destructive -why destroy the infrastructure that have served mankind so well in the past? Well, stone and bricks was the preferential building material in New York after the Great Fire in 1835. However, as building space was exhausted more living and office space could not be added by simply adding a new floor to an existing house. The stone and brick technology had come to a dead end. Buildings had to be torn down to make space for buildings using a completely different paradigm -the skyscrapers based on the use of steel frames. We suggest that the matter simulation (r)evolution will call for a healthy reclassification of the scientific fields away from classification based on structure toward functionalities.