Ben and Celestia go through a timeline of the different ways people have tried (or pretended) to chat with dead people and get meaningful information back. Join us as we go from rap-tap-tapping to mysterious music to written words, then books, then actual recordings of a ghost's voice! Or so the theory goes. Spiritualism was of course a major development in the "technology" of dead communications, and we pay special attention to the intersection of social forces at play in that movement and what benefits it bestowed upon its female practitioners.