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Originally posted by DoomsdayRex
It is pure speculation on his part. As it says above: ...the scientific evidence is inadequate at the present time to say anything about the probability. I would go so far as to say it is non-existent. His claimed evidence is so weak as to be stillborn. That all life on Earth shares the same basic DNA structure doesn't tell us anything other all life on Earth shares the same DNA structure.
Originally posted by DoomsdayRex
It is pure speculation on his part. As it says above: ...the scientific evidence is inadequate at the present time to say anything about the probability. I would go so far as to say it is non-existent. His claimed evidence is so weak as to be stillborn. That all life on Earth shares the same basic DNA structure doesn't tell us anything other all life on Earth shares the same DNA structure.
I would have to agree there. Look at it this way - life is an extremely rare thing as far as we can tell, and I'd be willing to guess the first complex arrangement of chemicals that just so happened to form the basis of life and evolution isn't something that takes place every 10 minutes. Therefore we see an obvious trend where all life appears to have evolved from a single organism and all life on Earth shares the same basic DNA structure.
Life found anywhere in the universe could be based on DNA, but because all life on Earth is, it does not mean it was "seeded".
Originally posted by Phage
The OP's quote says that Crick claimed extraterrestrial origins. Yes, for some reason I thought that was the OP's opinion. Silly me.
It might have been helpful if an original opinion had actually been offered to state his specific thoughts.
Mean attitude? Have you actually read my posts on this thread? If you have, it would seem that you have a rather large chip on your shoulder to take offense.
www.bibliotecapleyades.net...
Now that's something I might be "mean" about.
Originally posted by rapunzel222
Originally posted by DoomsdayRex
It is pure speculation on his part. As it says above: ...the scientific evidence is inadequate at the present time to say anything about the probability. I would go so far as to say it is non-existent. His claimed evidence is so weak as to be stillborn. That all life on Earth shares the same basic DNA structure doesn't tell us anything other all life on Earth shares the same DNA structure.
i love the armchair experts on this forum who consider themselves well qualified to disagree with nobel prize winning scientists...
...life could conceivably have been seeded on Earth by an alien intelligence from another planet (Francis Crick and Leslie Orgel suggested something similar -- semi tongue-in-cheek). The conclusion I was heading towards was that, even in the highly unlikely event that some such 'Directed Panspermia' was responsible for designing life on this planet, the alien beings would THEMSELVES have to have evolved, if not by Darwinian selection, by some equivalent 'crane' (to quote Dan Dennett). My point here was that design can never be an ULTIMATE explanation for organized complexity. Even if life on Earth was seeded by intelligent designers on another planet, and even if the alien life form was itself seeded four billion years earlier, the regress must ultimately be terminated (and we have only some 13 billion years to play with because of the finite age of the universe). Organized complexity cannot just spontaneously happen.
Originally posted by Malcram
...I'm slightly at a loss to work out exactly what you and others are doing, if not trying to "cast doubt on the idea" of directed panspermia, and reading again through the thread I'm sensing some are being less than honest about their motivations in posting.
The OP was perfectly accurate and made no unfounded claims. Nor did those who followed who expressed appreciation for the OP.
Originally posted by Phage
reply to post by QtheQ
Beliefs often have little to do with evidence and some do not require evidence for their beliefs. This is when belief becomes faith and faith has little to do with science.
Originally posted by DoomsdayRex
Originally posted by dragonsmusic
An applicable example would be the word "loser". It used to mean "someone who lost something" but is now used in a very different context . It could be used to apply to someone who thinks that speculation has no place at all in the forming of a theory.
Example, "That loser thinks that speculation has no part in the formation of scientific theory. "
I never said speculation did not have a place in the formation of a theory; you are reading what you want to.
And your desperation is proven by your need to resort to ad hominems.