The rules:
1) You can bring anything you want to the past, but you can't leave anything behind. So you can't bring back the polio vaccine and start treating people. It wouldn't work.
2) You can't take anything forward with you, either, except for information. So you could, say, travel back with a copy of a book and a pen, and have the book signed with that pen. Or you could bring a camera and take pictures. But all things must be somehow made from materials you carried with you.
3) You can't get sick in the past, but you could be eaten by a T-Rex. No one native to the time periods you're visiting will notice anything odd about you.
For my personal use, I would pack a bunch of digital cameras, Flip video recorders, and a gene sequencer, and hop back to Messina in 1347. I would then document the Black Death in ten year jumps, with lots of photographs and recordings of people trying to breathe as they fully expressed the virus. And then, when I got back to the present, I would drive the CDC insane...but I would finally know for sure.
For the good of all mankind, I would hop back to the pre-tape losses BBC archives with a tape-to-DVD portable recording rig (and a technician), and get copies of all the missing Doctor Who serials. Upon returning to the present day, I would probably also get knighted.
So what's your personal use? And what's your use for the good of all mankind?
April 22 2010, 05:06:51 UTC 7 years ago
For myself? That's so tough. Anything I might do for myself might alter the current timeline - and, while tough at times, I wouldn't want to jeopardise what I already have. If I could guarantee only making what I have better, I'd tell past me to invest early, buy property early and patent a really good idea I had 25 years ago that wasn't patented until about ten years ago. I'd also tell past me that following one's heart is far better than listening to one's mother and to pursue the career I truly wanted at 15. But if any of that changed anything I have (or anyone around me) for the worse, I wouldn't do it. I'd simply go back to certain world events I'd like to experience - such as Woodstock, the Beatles live, Elvis live, Many more concerts by people no longer here (like Buddy Holly/the Big Bopper/Richie Valens), the moon landings, and as many hops as I was permitted to fit in...
April 23 2010, 06:26:44 UTC 7 years ago