
Intelligent Design
The term "intelligent design" refers to design that is performed using
intelligence.
The term is often used a shorhand for the hypothesis that some aspect
of life as we know it was designed by intelligent agents.
In the latter sense, the term is often linked to the views of those
religious fundamentalists - who often believe that the world and man
were created by some sort of supreme being.
These folks have made a bad name for themselves in America, by
insiting that their views are taught to children in schools.
I don't have much to say here about intelligent design - except to
note that some intelligent design theories remain on the cards.
Unfortunately, vast quantities of nonsense is
written about intelligent design.
These days the nonsense is coming from both
opponents and proponents of intelligent design. The latest
drivel comes from its opponents comes from direction of the
American courts.
In Kitzmiller v. Dover Area School District (2005) United
States federal court judge John E. Jones III ruled that
intelligent design is not science - and is essentially
religious in nature.
That is not really correct. There are specific hypotheses of
intelligent design, just as there are specific hypotheses of origin
through natural means. Not all such theories have been refuted - so
there remains the possibiltity that life on earth contains elements
that were designed by an advanced intelligence.
In deciding Kitzmiller v. Dover Area School District on December 20,
2005, Judge John E. Jones III ruled that "we have addressed the
seminal question of whether ID is science. We have concluded that it
is not, and moreover that ID cannot uncouple itself from its
creationist, and thus religious, antecedents."
My council to scientists would be to ignore this ruling.
Judges are clearly poorly qualified to rule on scientific subjects.
The remaining viable scientific hypotheses of intelligent design
should be decided on their merits.
Viable Intelligent Design Hypotheses
What are the remaining viable scientific hypotheses of intelligent
design?
By popular demand, here is my list of the most sensible intelligent
design hypotheses that may help explain the origin of life or man.
- Panspermia
Panspermia involves the idea that life on earth actually evolved
elsewhere in the universe before making its way here. If that scenario
is accurate, elements of life may have been engineered by intelligent
designers on other worlds.
The element of modern organisms most likely to have been designed
in this way appears to have been the genetic substrate.
As an example of a specific viable intelligent design hypothesis,
consider the idea that the earth was seeded with RNA-based organisms
about four billion years ago - and that these organisms
originally came from a nearby star.
What happened to the intelligent ancestors of these organisms? There
are a number of possibilites - including the one discussed by Robin
Hanson in his paper:
Burning the Cosmic Commons:. Evolutionary Strategies for Interstellar Colonization.
Richard Dawkins has discussed this idea recently
Gods and earthlings.
He writes: "Unrealistic as the space alien hypothesis is, it constitutes
intelligent design's best shot.". Both of these points are debatable.
- Simulism
Simulism is the
idea that reality as we perceive it is an illusion - and the world as
we know it is a simulation.
While speculating about the containing world is not easy, looking
at our own universe, many simulations mimic the real world, and
are performed for entertainment purposes, or sometimes educational
ones. The most common types of simulated entertainment involve
games, movies and pornography.
The simulation could be a simulation of the universe known by
science - or it could be a simulation of one person's personal
universe.
Humans are probabaly non-player characters, in the former scenario,
and the player character in the latter one.
The evidence for simulism is rather weak. The universe does
seem to have a lot of sex and violence in it - and seems generally
entertaining - but that is not very conclusive.
- Optimisationverse
The idea that the world is an optimisation algorithm is rather like
Simulism -
in that it postulates that the world exists inside a computer.
However, the purpose of an optimisationverse is not entertainment -
rather it is to solve some optimisation problem using a genetic
algorithm.
The genetic algorithm is a sophisticated one, that evolves its own
recombination operators, discoveres engineering design - and so on.
If this hypothesis is correct, it is not currently known what the problem
to be solved is - or even whether it has been presented to anyone
yet.
- The adapted universe
Lastly there is the possibility that the laws of physics are
an adaptation. The laws do seem to exhibit "adaptive fit" - though
this can be partly explained on anthropic grounds.
This idea is associated with Lee Smolin:
The Life of the Cosmos.
Lee presents an unworkable version of the idea based on black holes.
There is also the work of by James Gardner:
Biocosm and Intelligent-Universe.
In these books Gardner proposes that our universe has been
deliberately engineered to promote life and intelligence -
and requires these attributes in order to mediate the
reproduction of the cosmos.
This places life in the universe as the product of previous
intelligent agents, in our universe's ancestor.
Some evidence for many of these options exists in the form of
the observation that the universe is more life-friendly than
is required by anthropic arguments. It looks a lot as though
living systems will expand to fill the universe - using most
of the available matter in one way or another. This is compatible
with living systems being a focus of the intelligent designers.
Also, the universe exhibits microscopic reversibility. This
property would be useful, if someone was paying for its power
supply and heat dissipation requirements - or if they ever
wanted to pause events and rewind them.
The universe's net energy appears to be zero. This makes sense
if one assumes that someone had to pay for the universe.
Similarly the universe's initial conditions appear to have
been very simple. Also, the laws of physics appear to be simple,
local and uniform. Again, this all makes sense if one assumes that
someone had to pay for setting up the initial conditions.
These observations are suggestive - but not conclusive. There is not
much evidence against these hypotheses either - but unless
more concrete evidence is found which favours them, they must
eventually be discarded - on grounds of Occam's razor.
The role of intelligent agents in evolution
It is worth noting that even conventional evolutionary
theory has the actions of intelligent agents contributing
to the human genome.
Sexual selection allows the choices made by intelligent
agents to influence the pattern of the next generation.
Also, the Baldwin effect allows material which is repeatedly
learned by intelligent agents to become permanent heritable
adaptations.
Humans are largely the product of intelligence - according to
all the theories of our origins which are on the table.
Tim Tyler |
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