Tag Archives: Science

Videos

William Lane Craig asks: can we be good without God?

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A video lecture in 3 parts, and a peer-reviewed paper to go with the clips.

Part 1 of 3:

Part 2 of 3:

Part 3 of 3:

And here is the article that discusses the same topic, in more detail, and with footnotes.

Excerpt:

Can we be good without God? At first the answer to this question may seem so obvious that even to pose it arouses indignation. For while those of us who are Christian theists undoubtedly find in God a source of moral strength and resolve which enables us to live lives that are better than those we should live without Him, nevertheless it would seem arrogant and ignorant to claim that those who do not share a belief in God do not often live good moral lives–indeed, embarrassingly, lives that sometimes put our own to shame.

But wait. It would, indeed, be arrogant and ignorant to claim that people cannot be good without belief in God. But that was not the question. The question was: can we be good without God? When we ask that question, we are posing in a provocative way the meta-ethical question of the objectivity of moral values. Are the values we hold dear and guide our lives by mere social conventions akin to driving on the left versus right side of the road or mere expressions of personal preference akin to having a taste for certain foods or not? Or are they valid independently of our apprehension of them, and if so, what is their foundation? Moreover, if morality is just a human convention, then why should we act morally, especially when it conflicts with self-interest? Or are we in some way held accountable for our moral decisions and actions?

Today I want to argue that if God exists, then the objectivity of moral values, moral duties, and moral accountability is secured, but that in the absence of God, that is, if God does not exist, then morality is just a human convention, that is to say, morality is wholly subjective and non-binding. We might act in precisely the same ways that we do in fact act, but in the absence of God, such actions would no longer count as good (or evil), since if God does not exist, objective moral values do not exist. Thus, we cannot truly be good without God. On the other hand, if we do believe that moral values and duties are objective, that provides moral grounds for believing in God.

This is the easiest argument for God’s existence to discuss with non-Christians. If you would like to hear a good debate on this topic, I recommend the debate between Arif Ahmed and Glenn Peoples.

Polemics

Doug Axe explains the chances of getting a functional protein by chance

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I’ve talked about Doug Axe before when I described how to calculate the odds of getting functional proteins by chance.

Let’s calculate the odds of building a protein composed of a functional chain of 100 amino acids, by chance. (Think of a meaningful English sentence built with 100 scrabble letters, held together with glue)

Sub-problems:

  • BONDING: You need 99 peptide bonds between the 100 amino acids. The odds of getting a peptide bond is 50%. The probability of building a chain of one hundred amino acids in which all linkages involve peptide bonds is roughly (1/2)^99 or 1 chance in 10^30.
  • CHIRALITY: You need 100 left-handed amino acids. The odds of getting a left-handed amino acid is 50%. The probability of attaining at random only L–amino acids in a hypothetical peptide chain one hundred amino acids long is (1/2)^100 or again roughly 1 chance in 10^30.
  • SEQUENCE: You need to choose the correct amino acid for each of the 100 links. The odds of getting the right one are 1 in 20. Even if you allow for some variation, the odds of getting a functional sequence is (1/20)^100 or 1 in 10^65.

The final probability of getting a functional protein composed of 100 amino acids is 1 in 10^125. Even if you fill the universe with pre-biotic soup, and react amino acids at Planck time (very fast!) for 14 billion years, you are probably not going to get even 1 such protein. And you need at least 100 of them for minimal life functions, plus DNA and RNA.

Research performed by Doug Axe at Cambridge University, and published in the peer-reviewed Journal of Molecular Biology, has shown that the number of functional amino acid sequences is tiny:

Doug Axe’s research likewise studies genes that it turns out show great evidence of design. Axe studied the sensitivities of protein function to mutations. In these “mutational sensitivity” tests, Dr. Axe mutated certain amino acids in various proteins, or studied the differences between similar proteins, to see how mutations or changes affected their ability to function properly. He found that protein function was highly sensitive to mutation, and that proteins are not very tolerant to changes in their amino acid sequences. In other words, when you mutate, tweak, or change these proteins slightly, they stopped working. In one of his papers, he thus concludes that “functional folds require highly extraordinary sequences,” and that functional protein folds “may be as low as 1 in 10^77.”

The problem of forming DNA by sequencing nucleotides faces similar difficulties. And remember, mutation and selection cannot explain the origin of the first sequence, because mutation and selection require replication, which does not exist until that first living cell is already in place.

But you can’t show that to your friends, you need to send them a video. And I have a video!

A video of Doug Axe explaining the calculation

Here’s a clip from Illustra Media’s new ID DVD “Darwin’s Dilemma”, which features Doug Axe and Stephen Meyer (both with Ph.Ds from Cambridge University).

I hope you all read Brian Auten’s review of Darwin’s Dilemma! It was awesome.

Related DVDs

Illustra also made two other great DVDs on intelligent design. The first two DVDs “Unlocking the Mystery of Life” and “The Privileged Planet” are must-buys, but you can watch them on youtube if you want, for free.

Here are the 2 playlists:

I also recommend Coldwater Media’s “Icons of Evolution”. All three of these are on sale from Amazon.com.

Related posts

News

EPA study finds that water in Dimock, PA is safe to drink despite fracking

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Here’s an excerpt from the EPA press release that exonerates fracking:

 The U.S. Environmental Protection Agency announced today that it has completed its sampling of private drinking water wells in Dimock, Pa. Data previously supplied to the agency by residents, the Pennsylvania Department of Environmental Protection and Cabot Oil and Gas Exploration had indicated the potential for elevated levels of water contaminants in wells, and following requests by residents EPA took steps to sample water in the area to ensure there were not elevated levels of contaminants. Based on the outcome of that sampling, EPA has determined that there are not levels of contaminants present that would require additional action by the Agency.

[…]Overall during the sampling in Dimock, EPA found hazardous substances, specifically arsenic, barium or manganese, all of which are also naturally occurring substances, in well water at five homes at levels that could present a health concern. In all cases the residents have now or will have their own treatment systems that can reduce concentrations of those hazardous substances to acceptable levels at the tap. EPA has provided the residents with all of their sampling results and has no further plans to conduct additional drinking water sampling in Dimock.

The Washington Times explains the context of this report.

Excerpt:

Closely watched tests by the Environmental Protection Agency have found that the drinking water in Dimock, Pa., is safe to drink, despite concerns from some residents and environmentalists that nearby fracking had contaminated supplies.

For the past seven months, EPA sampled water at private wells serving 64 homes in the small northeastern Pennsylvania town, the primary setting of the anti-natural-gas documentary “Gasland.”

EPA found hazardous substances such as arsenic and manganese in water supplies at five of the homes in question, but said Wednesday that the residences have or will soon have treatment systems “that can reduce concentrations of those hazardous substances to acceptable levels at the tap.”

Agency officials also said EPA will conduct no further testing and will stop delivering fresh water to Dimock residents.

“The sampling and an evaluation of the particular circumstances at each home did not indicate levels of contaminants that would give EPA reason to take further action,” EPA Regional Administrator Shawn M. Garvin said in a statement. “Throughout EPA’s work in Dimock, the agency has used the best available scientific data to provide clarity to Dimock residents and address their concerns about the safety of their drinking water.”

[…]In its Wednesday announcement, EPA made clear that the pollutants it identified occur naturally in the area.

Remember the EPA is one of the most politicized, anti-business agencies in the government. If I were President, the first two agencies I would eliminate are the EPA and the federal Department of Education. And yet even the EPA could not find anything wrong with fracking. That means that there is nothing wrong with fracking.

Why do people think that secular leftists are guided by reason and science? It seems to me that they are always embracing fashionable nonsense that isn’t proven out by the experimental data. Let’s make our policy based on what the experimental evidence shows.