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- Organization: Masters student, Urban and Public Affairs, Carnegie Mellon, Pittsburgh, PA
- Path: sparky!uunet!cis.ohio-state.edu!news.sei.cmu.edu!fs7.ece.cmu.edu!crabapple.srv.cs.cmu.edu!andrew.cmu.edu!wg2b+
- Newsgroups: alt.cyberpunk
- Message-ID: <4f3aLTm00iV1M1Tb9X@andrew.cmu.edu>
- Date: Sat, 21 Nov 1992 11:37:51 -0500
- From: Scott Gregory <wg2b+@andrew.cmu.edu>
- Subject: Re: Life extension debate coming up in my flat?
- In-Reply-To: <1992Nov20.171843.26378@eecs.nwu.edu>
- Lines: 44
-
- Excerpts from netnews.alt.cyberpunk: 20-Nov-92 Re: Life extension debate
- c.. by Ian Sutherland@nasser.ee
- > >This is a good point, IF the universe is infinite.
- > [...]
- > >The
- > >amount of time and space required for repetition is, in any case, large
- > >enough to not impose any serious limits on the population.
- >
- > What are you assuming about population growth rates here? If you
- > assume exponential growth, even a HUGE finite size can be overwhelmed
- > before you know it. Even if the universe were infinite, however, the
- > total size of the universe is not the real limiting factor. The real
- > limiting factor is the speed of light. If you can only move into new
- > space at the speed of light, the volume of space you can use grows as
- > the cube of the amount of time at most. If the population is growing
- > exponentially inside that volume, it may very quickly catch up.
- > --
- > Ian Sutherland
- > ian@eecs.nwu.edu
- >
- > Sans Peur
-
- Right. Of course for this to happen we have to assume that humanity
- will continue to "beat" the exponential j-curve here on earth. We're so
- far above sustainability now that if we still in some way mirror the
- effects that occur in the animal and vegetable kingdoms (which IMO we
- do) we can expect a huge population crash in the "near" future. AIDS
- anyone?
-
- We are like a huge red algae bloom. On an ultimate scale, we don't
- have to worry about overusing our resources, whether we are on one world
- or many, because when we do, a sizable amount of our population simply
- dies.
-
- I dont think we need to worry about filling up the universe at the
- cube of light anytime soon. We will have considerably fewer people here
- at home in 30 years. Exponential growth rates among animal populations
- tend not to sustain for very long before there is a tumbling fall.
- Granted, we've done better than most species at beating the odds, but
- our success can only be measured in hundreds of years (and not even too
- many of them).
-
- -Scott
-
-