Is evolution a random process?

Dr. Ard Louis speaks on the subject

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Is evolution a random process?

 
 

Is evolution a random process?

#1  Postby willhud9 » Sep 26, 2011 5:48 pm



I found this and other videos by this documentary group-thing to be very intriguing. :cheers:
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Re: Is evolution a random process?

#2  Postby mizvekov » Sep 27, 2011 7:48 am

Yes, it is most definitely understood as a random process since some time before the modern synthesis became established, very early into the 20th century.
The only way you can have a deterministic process of the evolution of some population is if you assume unlimited carrying capacity (population numbers that can grow to infinity) and selection coefficients which are not random themselves, and that is something very unlikely for any real population.
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Re: Is evolution a random process?

#3  Postby Louiesan » Nov 24, 2011 12:11 pm

Very intriguing.....But saying that evolution is a random process is logically wrong. Specially when we know that every cell is sophistic-ally linked and created.
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Re: Is evolution a random process?

#4  Postby GenesForLife » Nov 24, 2011 12:24 pm

Louiesan wrote:Very intriguing.....But saying that evolution is a random process is logically wrong. Specially when we know that every cell is sophistic-ally linked and created.


What turgid wibble! Evolution is random because there is stochasticity involved, even in selection, where you have a weighted probability instead of a uniform probability of higher fitness depending on genetic makeup. The stochasticity involved in mutation is also one thing you shouldn't forget.
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Re: Is evolution a random process?

#5  Postby Spearthrower » Nov 24, 2011 12:52 pm

The problem is that the word 'random' has a very different connotation in general speech, where it's taken to mean that all outcomes are equally likely. This reading of 'random' with respect to evolution is wrong. As GenesForLife has already said: instead random here should be seen as the counterpart of a deterministic system known as a 'stochastic process' where probability distributions best explain the likelihood of specific outcome, rather than them being entirely determined. It's bloody complicated, and the flexibility of the English language does not help in the slightest.
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Re: Is evolution a random process?

#6  Postby Calilasseia » Nov 25, 2011 12:44 am

And of course, when scientists use the word 'random', what they mean in rigorous parlance, is that they regard testable natural processes as being responsible for the outcome, but lack the observational data to pin down precisely which testable natural processes, out of several well-documented possibilities, was actually responsible in the given instance at the given moment. As a direct corollary thereof, scientists do not use the word 'random' in the same sense as the all too familiar and duplicitous creationist misrepresentations of their usage. Creationists deliberately and mendaciously equate 'random' and 'chance' with 'completely haphazard and with no underlying mechanistic explanation', which is a blatant misrepresentation of the sort that they routinely deploy in their apologetic fabrications. Scientists, on the other hand, erect postulates such as "repeated applications of testable natural processes A, B, C, D and E are capable of achieving this outcome, but which of these, and in which order, is observationally unknown to us at this stage, therefore we need to model the outcome in terms of a probability distribution, based upon the known outcomes of applications of A, B, C, D and E in test setups".
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Re: Is evolution a random process?

#7  Postby Calilasseia » Nov 25, 2011 12:51 am

Louiesan wrote:Very intriguing.....But saying that evolution is a random process is logically wrong. Specially when we know that every cell is sophistic-ally linked and created.


Right, and the hard empirical evidence for this is what, precisely? Please, point me to the relevant scientific papers supporting this assertion.
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Re: Is evolution a random process?

#8  Postby Bribase » Nov 25, 2011 1:10 am

Louiesan wrote:Very intriguing.....But saying that evolution is a random process is logically wrong. Specially when we know that every cell is sophistic-ally linked and created.


I have no idea what you mean. Every cell is made with sophistry?
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Re: Is evolution a random process?

#9  Postby mjpam » Nov 25, 2011 1:34 am

Calilasseia wrote:And of course, when scientists use the word 'random', what they mean in rigorous parlance, is that they regard testable natural processes as being responsible for the outcome, but lack the observational data to pin down precisely which testable natural processes, out of several well-documented possibilities, was actually responsible in the given instance at the given moment.


Sorry, I just couldn't resist. This is simply not what scientists mean when they call any process and "random process". Until evolution popularizers and self-appointed internet "experts" stop loudly propagating this basic falsity about the definition, meaning, and usage of "random process", they will continue to promulgate a view of evolution that not even Darwin himself considered correct.
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Re: Is evolution a random process?

#10  Postby Calilasseia » Nov 25, 2011 2:25 am

Oh, please, do tell me which scientists don't think testable natural processes are in operation ...
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Re: Is evolution a random process?

#11  Postby igorfrankensteen » Nov 25, 2011 2:33 am

Oh, dear. Is this going to be yet ANOTHER discussion which devolves into an argument about whether Semantics controls Science and reality or not?

The factuality of Evolution is NOT dependent upon the definition of the word "random," or whether this or that person meant to use the OTHER sub-meaning.
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Re: Is evolution a random process?

#12  Postby Spearthrower » Nov 25, 2011 2:51 am

mjpam wrote:
Calilasseia wrote:And of course, when scientists use the word 'random', what they mean in rigorous parlance, is that they regard testable natural processes as being responsible for the outcome, but lack the observational data to pin down precisely which testable natural processes, out of several well-documented possibilities, was actually responsible in the given instance at the given moment.


Sorry, I just couldn't resist. This is simply not what scientists mean when they call any process and "random process". Until evolution popularizers and self-appointed internet "experts" stop loudly propagating this basic falsity about the definition, meaning, and usage of "random process", they will continue to promulgate a view of evolution that not even Darwin himself considered correct.



I certainly wouldn't expect Darwin to have considered this correct considering he was understandably ignorant of the advances in scientific methods that have been developed since his death.

Isn't it usual, when you position yourself to be debunking something, to offer substance rather than an empty claim?
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Re: Is evolution a random process?

#13  Postby mjpam » Nov 25, 2011 3:12 am

Calilasseia wrote:Oh, please, do tell me which scientists don't think testable natural processes are in operation ...


Oh, please, do tell me that that is what you think I actually said. :eyeroll:

"Random", as it is used is science and by scientists, does not mean what you said it means when scientist use.
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Re: Is evolution a random process?

#14  Postby Spearthrower » Nov 25, 2011 3:16 am

mjpam - did you read the first word of Cali's post? It says 'and' - that means he was adding to what was previously said, so your retort must be directed at those posts, surely?
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Re: Is evolution a random process?

#15  Postby mjpam » Nov 25, 2011 4:49 am

Spearthrower wrote:mjpam - did you read the first word of Cali's post? It says 'and' - that means he was adding to what was previously said, so your retort must be directed at those posts, surely?


Apparently, you didn't read any other word than that, because he speicially mentions what scientists mean when they say "random", and he was patently wrong about how scientist define and use "random".
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Re: Is evolution a random process?

#16  Postby willhud9 » Nov 25, 2011 4:50 am

mjpam wrote:
Spearthrower wrote:mjpam - did you read the first word of Cali's post? It says 'and' - that means he was adding to what was previously said, so your retort must be directed at those posts, surely?


Apparently, you didn't read any other word than that, because he speicially mentions what scientists mean when they say "random", and he was patently wrong about how scientist define and use "random".


Too which Cali asked for you to name him which scientists don't. Derp.
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Re: Is evolution a random process?

#17  Postby Spearthrower » Nov 25, 2011 4:52 am

3 posts mjpam, and you still have yet to make a point.
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Re: Is evolution a random process?

#18  Postby mjpam » Nov 25, 2011 5:20 am

willhud9 wrote:
mjpam wrote:
Spearthrower wrote:mjpam - did you read the first word of Cali's post? It says 'and' - that means he was adding to what was previously said, so your retort must be directed at those posts, surely?


Apparently, you didn't read any other word than that, because he speicially mentions what scientists mean when they say "random", and he was patently wrong about how scientist define and use "random".


Too which Cali asked for you to name him which scientists don't. Derp.


Not one scientist has ever used "random" in the way that Callilissea claimed that was common for scientists to use it.
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Re: Is evolution a random process?

#19  Postby mjpam » Nov 25, 2011 5:35 am

Spearthrower wrote:3 posts mjpam, and you still have yet to make a point.


Your perception that I don't have a point doesn't necessarily mean that haven't already made it.

I very concisely stated what my objection Callilissea's assertions was; it really is all there in plain English.
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Re: Is evolution a random process?

 
 

Re: Is evolution a random process?

#20  Postby Spearthrower » Nov 25, 2011 5:40 am

mjpam wrote:
Spearthrower wrote:3 posts mjpam, and you still have yet to make a point.


Your perception that I don't have a point doesn't necessarily mean that haven't already made it.

I very concisely stated what my objection Callilissea's assertions was; it really is all there in plain English.


4 posts.

What I am asking for is some substance: what specifically is wrong, and why? Give some contradictory information rather than simply asserting it. That's the only means of expanding on this topic, surely? :)
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