Is there a particular puzzle, dilemma, problem you think needs some fresh insight? Post a topic, a question, a hypothesis, a wild idea. See where it leads.
Have you been pondering a particular missiological issue and/or forming a new (you think) take on it? Are you ready to launch the idea among friends and see if it floats? Pose it. Show what brought you to it. Say what you would like to test, and the kind of responses you would be eager to hear. (Being brief and to the point helps!)