do we have the knowledge (and technology) today that would be required to help us travel back thousands or even hundreds of years? Assume we also had the ability to teleport an object to any location, do we know enough about the location of Earth with respect to rest of the universe to transport something to the exact location that the Earth was in 100 years ago? With the Earth in orbit around the Sun, the Sun in some orbit in the Milky Way, being effect by gravity of other stars and the black hole in the center, and the Milky Way being effected by whatever other galaxies or objects out there, and the universe expanding at an accelerating rate, and... would this be possible to figure out in the next 5 - 10 years?
