A great many people still ride horses but do not get around in a horse drawn carriage. So, horses are still used, but not entirely the way they were used 100 years ago. The same will probably be true for film. Certain methods will survive and others will not. It is not our responsibility to choose which ones, but rather to do the best we can to provide as many choices as possible. And to do that, we need to provide as much correct and up to date information as possible. This includes updating formulas and dispelling myths.