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I am very familiar with the scientific process and informed inquiry and
scepticism are at its heart, but there comes a point beyond which it becomes
less a rational pursuit and more of an emotional, personal, and sightless
flight from reason.
Few scientists spend their time trying to disprove the theories of
relativity, Maxwell's equations, evolution (excluding those driven by
religious reasons), etc. For some theories the time comes where the theory
becomes accepted as fact. The impact theory is one that rightly belongs in
The facts are overwhelming: The famous iridium layer was found at the KT
boundary in many locations all over the world and this iridium layer could
only have been produced by either an impact or massive vulcanism; Ash has
been found in the KT boundary in many locations indicating massive fires
which is consistent only with the two reasons above; Evidence of an
unbelievably huge tsunami have been found radiating from Mexico thousands of
miles away containing shocked quartz from a massive impact; And, of course,
the gargantuan 120 mile crater was found surrounding the Yucatan in Mexico.
Yes, there are those who question the exact date of the Mexican impact, but
it is really pretty easy to ascertain -- find a location in the geologic
record where a near extermination of all life on earth occurred falling at
the rough age of the crater and there you have it -- the KT boundary is the
only place it could have occurred.
There are some people who, faced with this evidence, are still unwilling to
part with their defunct theories but concede that the impact must have had an
effect. So they say that their old theories are still really correct and that
the dinosaurs would have died off anyway if the impact had not occurred and
simply hastened their demise. Well, doesn't this sound a just a little too
And, painfully, there are still many whotry to discount the impact theory
I hate to see good science break down into irrational and sometimes childish
bickering and chest thumping. The arguments still being made against the
impact theory are not shining badges of the scientific method, but ugly
stains that are beginning to cost science face.