On queries and other messages Stephen Robertson Microsoft Research Cambridge 7 J J Thomson Avenue CB3 0FB Cambridge, UK ser@microsoft.com ABSTRACT for both theory and experimentation in the field. The sec- There are three parts to this talk – related in rather tangen- ond makes use of some ideas from general systems theory tial ways. First, I will give a recap of an argument developed and the notion of open systems, and applies these ideas to in a couple of earlier talks – at IIiX in 2008 and at the SIGIR information retrieval and the task context of search. The evaluation workshop in 2009. The gist of the argument is third discusses the status of queries in the current search about thinking about IR as a science, and the consequences world, and suggests two new ways to think about queries. Appears in the Proceedings of The 2nd International Workshop on Contex- tual Information Access, Seeking and Retrieval Evaluation (CIRSE 2010), March 28, 2010, Milton Keynes, UK. http://www.irit.fr/CIRSE/ Copyright owned by the authors.