A change in methods of dictionary making!
The concept of currency in empirical research into language is found to be different for moral sciences and for natural sciences. With moral sciences, the concept of currency is not necessarily linked with real time, but rather with the consciousness of the linguist. With natural sciences, the concept of currency is linked with real time due to market demands for high quality research based products. This observation will have a strong implication for methodical dictionary making process, as aspects of building coropora will be subject to change.