reply to post by warrenb
Interesting concept, might even work, but it ignores one basic fact:
If it were built, and people in the distant future could communicate with the past, WHY WOULD THEY WANT TO???
Given that interfering with the past is going to alter the future, some in small amounts, some drastically, and there's no way to determine exactly
what sort of changes will occur, unless the world's about to end due to an asteroid or a psycho Prez with a finger on the button, don't expect more
than a crank call from Cartman in the future.