From: CurtAdams@aol.com
Date: Sun Sep 08 2002 - 12:47:15 MDT
In a message dated 9/8/02 5:49:45 AM Pacific Daylight Time, eugen@leitl.org
writes:
>If this is an artificial object, it looks mature. It took a while to make
>it look like that. If they started expanding at the time they started
>engineering it, they would have colonized our local galaxy pocket (it's
>merely 600 megalightyears away), including this one. This a) would be
>highly visible b) you wouldn't be here if they did that.
You can't assume that. Intergalactic travel at near-light speeds makes
for an incredibly hostile environment (extremely hard radiation for long
periods of time) and it's not at all clear that it's possible. I'm inclined
to expect a natural origin for this thing, on the grounds that I don't see
why a galazy would be engineered this way. But if civilization-adequate
seeds can't travel faster than what you get out of fusion power, 0.1 c
or so, an expanding ring is plausible for an intergalactic civilization.
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