Time travel and the cutting edge of Creation.

Time travel has fascinated us for over a century, leading to all sorts of speculation about it. HG Wells wrote perhaps the first  of the many books about this and, of course, the beloved Doctor Who is dependent on time travel. Time Travel and Space Wells' vision, however entertaining, overlooked one major problem with time travel: even if you could move to a different when, establishing where that would be is staggeringly complex. The Earth is not stationary, indeed nothing in the Universe is. You would need to calculate precisely where in space you wanted to be at the time you wanted to be there. Suppose you just want to go back a week. It's not just a matter of going back a week where you are now, because last week, where you are now was 11.25 million miles away. You'd pop back into time in space and spend eternity orbiting the sun as a block of pink ice. The computing power required to get to where you want, whenever that was, is huge. And you need to be accurate. The sli