Devs, I plan to work on implementing open data kinds (#11080). The idea is that users will be allowed to declare open kinds and then populate them with member types. Perhaps I will also implement closed data kinds. This is already possible using DataKinds, but the idea is to declare a data kind without corresponding data type - see #6024. Now, consider this declaration (syntax subject to bikeshedding): kind K = T In what namespace should T go: type namespace or data constructor namespace? If we put it in type namespace then it is possible for the user to declare a data constructor T that is completely unrelated to type T belonging to kind K. This might be confusing. If we put T in the data namespace then we miss the point of #6024. Thoughts? Janek --- Politechnika Łódzka Lodz University of Technology Treść tej wiadomości zawiera informacje przeznaczone tylko dla adresata. Jeżeli nie jesteście Państwo jej adresatem, bądź otrzymaliście ją przez pomyłkę prosimy o powiadomienie o tym nadawcy oraz trwałe jej usunięcie. This email contains information intended solely for the use of the individual to whom it is addressed. If you are not the intended recipient or if you have received this message in error, please notify the sender and delete it from your system.