Molecular machines, although it may often seem so, are not made with a blueprint at hand. Yet, biochemists and molecular biologists (and many scientists of other disciplines) are used to thinking as an engineer, more precisely a reverse engineer. But there are no blueprints … ‘Nothing in biology makes sense except in the light of evolution’: we know that Dobzhansky (1973) must be right. But our mind, despite being a product of tinkering itself strangely wants us to think like engineers. (Walter Neupert, "Highlight: Molecular Machines," Biological Chemistry, Vol. 386(8):711, August, 2005. Emphasis added.).I actually don't know why Dobzhansky must be right? As a professional engineer with a PhD in Electrical Engineering, I am astounded at the coded information (surpassing anything that we engineers have been able to do even with Shannon communication theory, control theory and Turing machines) in the DNA nanotechnology molecular machinery of the cell. Wherever we have checked into the origins of systems of coded-information/Turing machines, intelligence is always implicated (check the manufacturer's label on your PC). So when we see the same systems (without the manufacturer's label) in the DNA of the cell, then we are entitled to conclude that intelligence is implicated.
Here is what would convince me that Darwin and his successors were on to something: provide a detailed Darwinian pathway for the emergence of the molecular machinery in the cell with probability greater than 10^(-150) starting from dead chemicals (*). A detailed Darwinian pathway is one that may use any chance or natural processes, but it may not appeal to intelligent guidance. The outcome should be judged by qualified experts on both sides of the evolution-creation controversy. Alternatively, see here.
In Chapter 19 of Challenge of Creation, the author writes that some scientists admit they do not know how life originated via naturalistic processes but that other scientists feel that "there is a viable naturalistic explanation" for the origin of life". The question is not what scientists believe or feel. The question is what have they actually demonstrated? Come to think of it, if R. Slifkin is correct, he might be able to win a million dollars here.
(*) There are about 10^80 elementary particles in the universe. The properties of matter are such that the transition from one state to another cannot occur faster than 10^45 times per second corresponding to the Planck time, the smallest meaningful unit of time. Assuming an age for the universe of 13.7b years according to the evolutionists, that is about a billion times younger than 10^25 seconds. Putting that all together, there could not be more than 10^150 events in cosmic history. So a probability bound of 1 in 10^150 is a universal probability bound using all the probabilistic resources of the cosmos according to consensus science. Emil Borel provided a more stringent bound of 1 in 10^50, but we want to make it as easy as possible for evolutionists to provide the requisite scientific demonstration. Dobzhansky was talking about biological evolution but scientists have extended the blind-watchmaker thesis to chemical evolution as well. Any combination of biological and chemical evolution are addressed in this post, and that is what is meant by a Darwinian pathway).