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Author Topic:   Assumptions of ToE
RAZD
Member (Idle past 1430 days)
Posts: 20714
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Joined: 03-14-2004


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Message 14 of 32 (529557)
10-09-2009 6:23 PM
Reply to: Message 6 by Peg
10-09-2009 3:50 AM


The first life is unknown.
Hi Peg, I'm not sure this will help, but you need to be aware of the science evidence before making conclusions about what the science says.
my understanding of evolution is that the first living organism developed from lifeless matter. Then, as it reproduced it changed into different kinds of living things, ultimately producing all forms of plant and animal life that have ever existed on this earth.
In science, theory is based on evidence. From the available evidence one can form hypothesis to explain the evidence and then make predictions about what would happen if the hypothesis is true.
Curiously, when it comes to the origin of life on earth the evidence is inconclusive at best:
All evidence available from 4 billion years ago do not show evidence of life. One part of the problem is that there are no fossil bearing rocks that old, no sedimentary rocks. The rocks that age are all metamorphic, post volcanic, and heated to a temperature that would destroy all fossils. So we don't know whether life exist at that time.
The evidence is that the earth formed 4.55 billion years ago, and thus life could not be older than that and be of terrestrial origin.
The first evidence of life is from the oldest fossil bearing rock that has been found, it is 3.5 billion years old, and it shows active existing cellular life.
Thus there is no evidence of when life started on earth.
Evolution starts with what we know, which is that first known life, and works forward to the present.
Abiogenesis also starts with what we know, which is the first known life, and works backwards to where we know life did not exist.
BUT - at this point we don't know how life began.
Enjoy.

we are limited in our ability to understand
by our ability to understand
Rebel American Zen Deist
... to learn ... to think ... to live ... to laugh ...
to share.


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This message is a reply to:
 Message 6 by Peg, posted 10-09-2009 3:50 AM Peg has not replied

  
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