Hot and Cold Media

According to the reading, the level of participation determines the hotness or coolness of a piece of media.  Also, hot media tends to dominate one sense (sight, sound, etc).  So in application to the web intervention project, we decide to aim for either hot or cold media.  Is the intervention low in participatory or does the viewer/audience/listener need to fill in the gaps with their own reasoning?  In some sense, the ideal "internet intervention" would have some level of participation and require audiences to make inferences but also have the stimulus of hot media.