From: Eugene Leitl (Eugene.Leitl@lrz.uni-muenchen.de)
Date: Fri Jan 11 2002 - 02:35:32 MST
On Thu, 10 Jan 2002, Spike Jones wrote:
> This isn't at all clear to me. Consider the possibility that the
> universe is a dangerous place. Advanced technology societies may not
> wish to announce their presence. If they are capable of building
> something like Robert's proposed M brains, they might be able to do so
> quickly, as in a few hundred years. The star would appear to wink
> out, at least in geologic time. With sufficiently advanced
We don't know what the constraints are, but it looks like a lot less than
geological time. You should see dimming on decade scale, and it will
accelerate from that. Exponential kinetics.
> technology, they may be able to make theselves nearly invisible.
Right, and since there are non-FIR stars we're not in advanced aliens'
lightcone. In fact because you're reading this message there are no
aliens (=us in their lightcone).
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