05-23-2003, 05:52 AM
Quote:So how could a person travel to the past, thus decreasing entropy at a specific point in the past? Or would it be balanced by his absence in the future?
I'm no expert, but if the universe was bounded (or closed), then shouldn't there be a limit to time as well as space? In that case, the effect of entropy wouldn't be reduced so much as err... shifted? To another point in time.
The best concept of time travel I've come across is from a James P. Hogan book, Thrice Upon a Time. In it, he postulates that it's impossible to send matter through time, only data; and only into the past. Then, from the moment you sent the data back to, ripples travel back upstream (towards the future) along the timeline, basically rewriting history. It's a novel approach, and my bumbling description doesn't do it justice.
- WL