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To: GSHastings
Can you show me ONE complex thing that you can PROVE originated by an evolutionary process?

How about this one: http://www.talkorigins.org/faqs/genalg/genalg.html#examples:electrical

A field-programmable gate array, or FPGA for short, is a special type of circuit board with an array of logic cells, each of which can act as any type of logic gate, connected by flexible interlinks which can connect cells. Both of these functions are controlled by software, so merely by loading a special program into the board, it can be altered on the fly to perform the functions of any one of a vast variety of hardware devices.

Dr. Adrian Thompson has exploited this device, in conjunction with the principles of evolution, to produce a prototype voice-recognition circuit that can distinguish between and respond to spoken commands using only 37 logic gates - a task that would have been considered impossible for any human engineer. He generated random bit strings of 0s and 1s and used them as configurations for the FPGA, selecting the fittest individuals from each generation, reproducing and randomly mutating them, swapping sections of their code and passing them on to another round of selection. His goal was to evolve a device that could at first discriminate between tones of different frequencies (1 and 10 kilohertz), then distinguish between the spoken words "go" and "stop".

This aim was achieved within 3000 generations, but the success was even greater than had been anticipated. The evolved system uses far fewer cells than anything a human engineer could have designed, and it does not even need the most critical component of human-built systems - a clock. How does it work? Thompson has no idea, though he has traced the input signal through a complex arrangement of feedback loops within the evolved circuit. In fact, out of the 37 logic gates the final product uses, five of them are not even connected to the rest of the circuit in any way - yet if their power supply is removed, the circuit stops working. It seems that evolution has exploited some subtle electromagnetic effect of these cells to come up with its solution, yet the exact workings of the complex and intricate evolved structure remain a mystery (Davidson 1997).

400 posted on 08/16/2005 7:54:48 PM PDT by bobdsmith
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To: bobdsmith
How about this one: http://www.talkorigins.org/faqs/genalg/genalg.html#examples:electrical A field-programmable gate array, or FPGA .....

I won't bother to reprint your whole post. Just read it again yourself and you will clearly see that nothing more happened here other than the creation of a devise by INTELLIGENT DESIGN. The engineer had a goal in mind. He programmed the code to select with a GOAL in mind. Anything which did not advance toward the GOAL was deselected. Anything which advanced toward the GOAL, was selected. Intelligent Design, through and through! Design, Intent, Goal, Intervention, all directed by INTELLIGENCE. Next?

406 posted on 08/16/2005 8:04:18 PM PDT by GSHastings
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To: bobdsmith; GSHastings
FPGA are one of the things I design.

FPGAs are not circuit boards but macro cells composed of
flip-flops etched on a silicon substrate just like any other I.C.
Their akin to dynamic memories or state machines.
Their logic algorithms are usually written in Verilog
or a graphical state timing cad language such as Modelsim
(by a human designer).

By leaving some of their MOS inputs un-terminated
they may react to random external electro magnetic stimulus.


The algorithm (state) is stored in a serial flash memory
and loaded into the FPGA on initialization.

With out a clock their serial flash could never load their
algorithm nor could they toggle their flip-flop CLB and output latches.
They are so dependent on clocking most contain a digital clock manager (DCM).
While this may work with a gate array it simply will not
with a FPGA.

Which leads me to to my point.

Your article (post 400) is complete bunko.....

If I were you I would refrain from using it in the future
since even the first sentence is in error.


BTW as a scientist and design engineer I am also a Christian and believe in GOD's creation.

I get along fine. And I have faith and hope..
504 posted on 08/17/2005 1:19:29 AM PDT by DaveTesla (You can fool some of the people some of the time......)
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