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It takes a long time to talk to ET.It's a tradition in hard science fiction to write of a two-way exchange
EM velocity can't exceed c.
Waves go the distance without much resistance.
They get there eventually,
But it takes time to talk to ET.
You say, "I don't care about waves. I'll go there in person at warp factor ten."
That's merely ruminal. Speeds superluminal can't be accomplished by men.
If we can't fly there, I think it is most fair to say they can't reach us as well.
So we try radio. Even though very slow, such one-way messages volumes can tell.
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this page last updated 31 January 2009
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