Re: SETI/ASTRO: MBrains/JBrains & Globular Clusters

From: Technotranscendence (
Date: Mon Jul 16 2001 - 09:56:55 MDT

On Monday, July 16, 2001 4:50 AM Anders Sandberg wrote:
> Well, when you re-engineer an entire globular cluster you are bound to be
> noticed quite far off. My scheme even involved planned supernovae; I'm not
> sure you can convert stars to quark matter in a quiet way. Dysoning the
> whole place might make things less obvious, but it still seems hard to
> the enormous amount of energy being dissipated.

I agree about this, given our current understanding. However, if you were
able to plan things millions of years in advance, as I think such a project
would demand, then might it not be possible to hide a lot of the work?

> One might of course argue that the reason we still see the clusters is
> nobody dares to break stealth by going for them.

That another possibility. What about extracting energy from areas where it
would be likely for it to be noticed?

>> Also, I'm not sure how clear the Hubble data are. From my reading, the
>> globular clusters don't currently have detectable planetary disks. That
>> doesn't mean they didn't have them or that they don't have them below
>> detectable levels. Add in stealthing and -- well, add it in and you can
>> pretty conceive of any possible reason not to get a peek at Jupiter brain
>> artifacts.
> Globular clusters are mainly older population I stars if I recall right,
> if they have planets they will be low on the heavier elements we would
> to use for megastructures, such as carbon.

I agree, though given the surprises of the last several years of "planet"
discoveries, I wouldn't be shocked if planets were found in the stranger
places -- even planets with heavier (carbon and above) elements.

Of course, maybe the gamma ray burst are really Jupiter brain societies jump
starting before they stealth.:)


Daniel Ust
    See "The Many Births of Free Verse" at:

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