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No Love for Comet Wipeout - Comments

Sensible's Avatar Comment 1 by Sensible

To quote Carl Sagan "Extraordinary claims require extraordinary evidence"

Sun, 29 Apr 2012 14:28:24 UTC | #938153

Klaasjansch's Avatar Comment 2 by Klaasjansch

I have always wondered why people are so anxiously looking for a single cause to whatever phenomenon. To my mind the world is a terribly complex place in which many events are the result of a mix of numerous other events. Possibly a comet had something to do with the extinction of mega fauna after the younger dryas, possibly humans had as well, maybe the younger dryas itself was to blame (if blame is the right word for it). I think we should look how all these separate events interact. Maybe I'm focusing to much on one word though. I do think it's an interesting subject. Mega faunal extinction I think might be caused by a relatively fast change in habitat in the sense that the extinct species just couldn't keep up with the changing circumstances. A meteorite might do the trick, possibly combined with emerging human cultures, changing climate, diseases.

Sun, 29 Apr 2012 15:57:14 UTC | #938172

Schrodinger's Cat's Avatar Comment 3 by Schrodinger's Cat

It's not just with mammoths that the impact theory is increasingly open to question. The whole idea that the dinosaurs were wiped out by an asteroid impact has also been brought into question as well. All the evidence now suggests ( as Klaasjansch points out in#2 ) that multiple factors are at play.....for example the emergence of the Siberian traps probably added to the effects of an asteroid impact that would otherwise have been survived. I like the increasing emergence of multiple cause ( 'last straw' ) theories.......it's clearly the way things really happen in a complex world.

Sun, 29 Apr 2012 19:06:14 UTC | #938196

Akaei's Avatar Comment 4 by Akaei

inconclusive

Mon, 30 Apr 2012 01:32:10 UTC | #938256

CEVA34's Avatar Comment 5 by CEVA34

Isn't it refreshing to follow a debate like this, where one side is not saying the other is wicked and eternally damned for disagreeing? How baffling it must seem to people like that guy from "The Remnant".

Mon, 30 Apr 2012 10:17:57 UTC | #938319

Alan4discussion's Avatar Comment 6 by Alan4discussion

Satellite mapping has shown impacts (and their craters) to be more common than once thought, but multiple causes seem more likely, especially when planet wide effects are involved.

Mon, 30 Apr 2012 10:24:13 UTC | #938320

Alan4discussion's Avatar Comment 7 by Alan4discussion

Oh! .. .... ... and while we are on the subject, it could be worth keeping an eye on this one! - Regardless of if you are superstitious or not!

Asteroid 2004 MN4 will come scarily close to Earth on April 13, 2029, but it will not hit. - http://science.nasa.gov/science-news/science-at-nasa/2005/13may_2004mn4/

Wed, 02 May 2012 15:37:21 UTC | #939044

kittg's Avatar Comment 8 by kittg

I just love the fact that we are able to have a sensible, logical and grown up argument like this in science. There are arguments for and against and in the end the science will show not necessarily the "truth" but at least either disprove or support the theory.

How different to the crap that theologians and truthers come out with.

Sun, 06 May 2012 10:27:42 UTC | #940125