Arising_uk wrote:Greylorn Ell wrote:...
Darwin did not predict DNA, so you can stand up and wipe the brown stains off your lips. He predicted a mechanism by which the characteristics of critters could be changed. He did not specify the details of that mechanism. ...
How could he? As he didn't know the mechanism, what he did do was predict that there was one and lo' and behold we found it.
Did you now?
DNA contains code for the construction of proteins. However, no scientist has identified how DNA codes for structure, i.e. the arrangement of those proteins within a body. I'm certain that the structural blueprints are in there, but no scientist smart enough to figure them out has yet to appear.
DNA is a code, and only a code. By itself it is useless. What accounts for the cellular machinery that decodes the DNA, generates the proteins, carries them safely from the cell that constructed them and transports them to the parts of the body wherein they are needed?
I've written computer code for a living for better than 50 years. Back in the sixties, the code consisted of rectangular holes punched in Hollerith cards, or circular holes punched into a strip of paper tape. These days the codes consist of tiny bits of ferrite material on a rotating disk, or electronic states within a flash stick. These codes all require one thing in common-- a machine capable of translating them in a useful and functional manner.
I have an old strip of punched paper tape in storage. The codes on that tape were once decoded by a small computer, which transmitted some of them through a NASA telemetry system to another computer that was part of a telescope in orbit around the earth. The codes were then further decoded to reposition the telescope to point at a particular star, and then to execute a precise observing sequence. The project was successful. So what good are the codes on my paper tape?
The telescope has long since fallen into the ocean and disintegrated. If a version of the computer I used still exists, it would be in a museum, and probably no longer functions. Likewise its paper tape reader. The electronic boxes that formed the heart of NASA's telemetry systems have long since been scrapped, the control room in which they lived long ago dismantled and put to different uses. So the codes on my paper tape are useless. They can sit around for a trillion years and will never, by themselves, generate the computer that once made sense of them, the intermediate control systems, or the two ton telescope they were engineered to control.
The same is true of DNA. You can leave a strip of it around forever and it will do nothing. It only functions in the context of the decoding mechanisms within a cell. From whence arose the cell and those mechanisms? That is the real question that anyone actually looking for an honest understanding of the nature and purpose of life must answer.
Darwinism offers a potential mechanism of how DNA might change so as to produce an ongoing series of new critters without the intervention of intelligent engineering. It is the equivalent of a computer programming course employing random-change principles to create effective new programs, in which the students do not actually think about codes and purpose, but merely throw darts at old Hollerith cards tacked to the wall, then remove the cards with their randomly scattered holes and feed them into a computer, in hopes that the computer will make sense of them.
The students' job in such a course would be to act as the "Natural Selectors," to alert the professor whenever a stack of the randomly punched cards actually does something interesting. (The computer cannot do this itself.)
The question that goes begging, both in the context of Darwinism and my silly random-programming course, is, from whence do the translating mechanisms come? That is the only important question. Development of the codes themselves is barely relevant to the question.
So, good Darwinist. Tell us how the first cell, complete with its protective membrane, internal decoding and transport mechanisms, a storeroom full of the amino acids needed for protein assembly, another storeroom containing enough nucleotides to assemble RNA and tRNA, plus the initial snippet of DNA necessary to replicate itself, came to be.
And kindly stop calling me names. Name-calling is the hallmark of those who are too futile to intelligently defend their cherished beliefs with legitimate information and cogent logic. You are better than that.
Thank you,
Greylorn