last week's posting). Frank points out that even plausible Time Travel using an infinite Tipler cylinder would still require a spaceship accelerating along its length. May I point out, yet again, for those who haven't noticed, the Door not only isn't a spaceship but it also doesn't leave the general area where it's been set up.
The other end of it, though, is a different matter. Where it leads we still haven't figured out. From the few sighting of stars that Tom has been able to copy down and bring back, Frank hasn't been able to place it in mapped space, but once Frank has enough stars identified, he'll be able to pin down the location of the other side on a 3-D map of the stars, and then we'll know where we're going. (Although, Frank is the only one who even cares enough to worry about it; to the rest of us, it doesn't really matter as long as we get to charge folks to visit.)
Keep up the comments. See ya!