No frog186, we don't think you're crazy. No more than the rest of us anyway. I'd like to try a machine like that myself. The understanding I have of astral or mental time travel is that it's a lot safer than physical time travel or teleportation. It's a much easier operation, because one doesn't have added the complication of taking the physical body along for the ride. And with this simpler type of time travel one can travel more easily to distant parts of the time stream. You shouldn't be limited to just this lifetime at all, as suggested by Brian Jung. Of course I would like to develop this ability of mental time travel more naturally, by simply raising my consciousness to the point where I don't even need such a machine. The other side of it is, I feel I should be able to develop such a machine myself, for my own use, which has the appropriate superconductive energies built into it.