Recommended directions of research and development in superconducting electronics

For some time, work has been continuing within the U.S.A. on a "Technology Roadmap for the Superconducting Electronics Industry". A similar roadmap exercise is underway in Europe, and in Japan, recently announced research projects in superconductivity involved a detailed planning process. However, the U.S. Roadmap is not complete, and a consensus of industry opinion has not yet been reached on its recommendations. This manuscript should be regarded as a distillation of inputs from many sources, heavily weighted with the author\´s own prejudices. He suggests that a system level view of superconducting electronics technology should lead to revisions of today\´s research priorities. In particular, the importance of the cryocooler and cryopackage in each system has broad implications, even affecting the directions of materials and device research.