Inmanycases, whentheysay a calculationneeds to be faster, what they reallymeanis that they need to knowmorequickly and reliably how long thecalculationwilltake.
Natural gas emits half as much carbon dioxide as coal when used to make electricity, though thecalculation fails to take into account the release of methane from natural-gas wells and pipelines, which also contributes to climate change.
Although the theory that describes the interaction of quarks and gluons is on a firm conceptual footing, it is so complicated in practice that it can take years to make a single calculation of something like the shape of a proton even using the most powerful supercomputers.