Wintery Knight

…integrating Christian faith and knowledge in the public square

Can Darwinian evolution create new functional biological information?

Here’s a great article from Evolution News that explains the trouble that Darwinian evolution has in building up to functional new biological information by using a process of random mutation and natural selection.

Casey Luskin takes a look at a peer-reviewed paper that claims that Darwinian evolution can do the job of creating new information, then he explains what’s wrong with the paper.

Excerpt:

In Wilf and Ewens’s evolutionary scheme there is a smooth fitness function. Under this view, there is no epistasis, where one mutation can effectively interact with another to affect (whether positively or negatively) fitness. As a result, any mutations that move the search toward its “target” are assumed to provide an immediate and irrevocable advantage, and are thus highly likely to become fixed. Ewert et al. compare the model to playing Wheel of Fortune:

The evolutionary model that Wilf and Ewens have chosen is similar to the problem of guessing letters in a word or phrase, as on the television game show Wheel of Fortune. They specify a phrase 20,000 letters long, with each letter in the phrase corresponding to a gene locus that can be transformed from its initial “primitive” state to a more advanced state. Finding the correct letter for a particular position in the target phrase roughly corresponds to finding a beneficial mutation in the corresponding gene. During each round of mutation all positions in the phrase are subject to mutation, and the results are selected based on whether the individual positions match the final target phrase. Those that match are preserved for the next round. … After each round, all “advanced” alleles in the population are treated as fixed, and therefore preserved in the next round. Evolution to the fully “advanced” state is complete when all 20,000 positions match the target phrase.

The problem with this approach is that a string of biological information that has only some letters that are part of a useful sequence has no present function, and therefore cannot survive and reproduce.

Look:

Thus, Wilf and Ewens ignore the problem of non-functional intermediates. They assume that all intermediate stages will be functional, or lead to some functional advantage. But is this how all fitness functions look? Not necessarily. It’s well known that in many instances, no benefit is derived until multiple mutations are present all at once. In such a case, there’s no evolutionary advantage until multiple mutations are present. The “correct” mutations might occur in parallel, but the odds of this happening are extremely low. Ewert et al. illustrate this problem in the model by using the example of the difficulty of one phrase evolving into another:

Suppose it would be beneficial for the phrase

“all_the_world_is_a_stage___”

to evolve into the phrase

“methinks_it_is_like_a_weasel.”

What phrase do we get if we simply alternate letters from the two phrases?

“mlt_ihk__otli__siaesaaw_a_e_.”

Under the assumptions in the Wilf and Ewens model, the “fitness” of this nonsense phrase ought to be exactly half-way between the fitnesses of “all the world is a stage” and “methinks it is like a weasel.” Such a result only makes sense if we are measuring the fitness of the current phrase by its proximity to the target phrase.

But the gibberish of the intermediate phrase doesn’t cause any problem under Wilf and Ewens’s model. Not unlikeRichard Dawkins, they assume that intermediate stages will always yield some functional advantage. And as more and more characters in the phrase match the target, it becomes more and more fit. This yields a nice, smooth fitness function — rich in active information — not truly a blind search.

Not only is there that first problem, but here’s a second:

Wilf and Ewens endowed their mathematical model of evolution with foresight. It is directed toward a target — an advantage that natural selection conspicuously lacks. And what, in our experience, is the only known cause that is goal-directed and has foresight? It’s intelligence. This means that once again, the Evolutionary Informatics Lab has shown that simulations of evolution seem to work only because they’ve been intelligently designed.

This is worth the read. If Darwinian mechanisms really could generate code, then there would be no software engineers. The truth is, the mechanisms don’t work to create new information. For that, you need an intelligent designer.

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What really happened to Jesus? A look at the early historical records

From Eric Chabot.

Excerpt:

As historians evaluate the sources available for the resurrection of Jesus, a critical question is the dating of the sources. In relation to early testimony, historian David Hacket Fisher says, “An historian must not merely provide good relevant evidence but the best relevant evidence. And the best relevant evidence, all things being equal, is evidence which is most nearly immediate to the event itself.” (1) One key in examining the early sources for the life of Christ is to take into account the Jewish culture in which they were birthed. As Paul Barnett notes, “The milieu of early Christianity in which Paul’s letters and the Gospels were written was ‘rabbinic.’” (2)

Given the emphasis on education in the synagogue, the home, and the elementary school, it is not surprising that it was possible for the Jewish people to recount large quantities of material that was even far greater than the Gospels themselves.

Jesus was a called a “Rabbi” (Matt. 8:19; 9:11; 12:38; Mk. 4:38; 5:35; 9:17; 10:17, 20; 12:14, 19, 32; Lk. 19:39; Jn. 1:38; 3:2), which means “master” or “teacher.” There are several terms that can be seen that as part of the rabbinic terminology of that day. His disciples had “come” to him, “followed after” him, “learned from” him, “taken his yoke upon” them (Mt. 11:28-30; Mk 1). (3)

[...]There was tremendous care in ‘delivering’ the traditions that had been received. Jesus’ use of parallelism, rhythm and rhyme, alliterations, and assonance enabled Jesus’ words not only ‘memorizable’ but easy to preserve. (4) Even Paul, a very competent rabbi was trained at the rabbinic academy called the House of Hillel by ‘Gamaliel,’ a key rabbinic leader and member of the Sanhedrin. It can be observed that the New Testament authors employ oral tradition terminology such as “delivering,” “receiving,” “passing on” “learning,” “guarding,” the traditional teaching. Just look at the following passages:

Romans 16: 17: “Now I urge you, brethren, keep your eye on those who cause dissensions and hindrances contrary to the teaching which you learned, and turn away from them.”

1 Corinthians 11:23: “For I received from the Lord that which I also delivered to you, that the Lord Jesus in the night in which He was betrayed took bread.”

Philippians 4:9: “The things you have learned and received and heard and seen in me, practice these things, and the God of peace will be with you.”

2 Thessalonians 2:15: “So then, brethren, stand firm and hold to the traditions which you were taught, whether by word of mouth or by letter from us.”

Paul applies this terminology in 1 Corinthians 15: 3-7 which is one of the earliest records for the historical content of the Gospel – the death and resurrection of Jesus. The late Orthodox Jewish scholar Pinchas Lapide was so impressed by the creed of 1 Cor. 15, that he concluded that this “formula of faith may be considered as a statement of eyewitnesses.” (5)

Paul’s usage of the rabbinic terminology “passed on” and “received” is seen in the creed of 1 Cor. 15:3-8:

“For what I received I passed on to you as of first importance: that Christ died for our sins according to the Scriptures, that he was buried, that he was raised on the third day according to the Scriptures, and that he appeared to Peter, and then to the Twelve. After that, he appeared to more than five hundred of the brothers at the same time, most of whom are still living, though some have fallen asleep. Then he appeared to James, then to all the apostles, and last of all he appeared to me also, as to one abnormally born.”

The earliest creeds are the best sources to tell us what really happened to Jesus, and they are surprisingly consistent with the traditional Christians beliefs. Anyone who wants to know what really happened to Jesus should go to the earliest sources.

Filed under: Polemics, , , , , , , , , , ,

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