Originally posted by Evil
very cool but having intelligence means u live longer n better isn't it?
Hi Evil,
I would say that if "successful evolution" is defined simply as successfully passing on genes (that is, avoiding extinction), then a cockroach or a shark is arguably more "successful" than a human, in the sense that both species have been around (unchanged) far longer than we have.
So from this perspective, high intelligence is simply one of many possible modus operandii that a species could use to ensure the survival of its gene lineage, but it's not necessarily
required for evolutionary success. In evolutionary parlance, "fitness" can occur without intelligence.
It's interesting that on the huge tree of life, made up of vast phylogenetic diversity that spans 3.5 billion years of evolution (each kingdom of plant, animal, bacteria, fungi, protista is subdivided into thousands of taxonomic subgroups), there is ONLY ONE leaf (off one single branch) that ever sprouted high intelligence -- and that only happened in the last hundred thousand years or so.
Stephen Jay Gould once wrote that if the 3.5 billion-year-old timeline of life on Earth were the Eiffel Tower, then modern humans would represent the last coat of paint on the top of the tower's tip.
So historically at least, Nature doesn't seem to view intelligence as the best way for a species to achieve evolutionary fitness.
Having said all that, there's no question that high intelligence does give the ultimate evolutionary advantage: we can alter our environment to suit us, which removes the need for adaptation and selection.
I think that Arthur C. Clarke's quote recognized this. He is saying that our intelligence (that is, our evolutionary success) could very well trigger a sixth mass extinction (due to overpopulation, massive and rapid environmental change, weapons of mass destruction, etc.). On geological timescales, this sudden occurrence of intelligence could then be viewed as a potential liability -- not just to us, but to the whole planet.
Personally, I think (hope?) that our intelligence can also ultimately save us from ourselves...
metasystem