I've just typed a question, but I can't see it anywhere and how will I know if anyone ever answers it? This looks like an interesting site but at 56 maybe I'm not computer-savvy enough.
If you could travel at 99.9999999% light-speed, how far would you get in 50 years ? I would have thought the distance would be 49.9999999 light years, but according to a book I'm reading, you can...
