Dr. Walter Bradley explains the requirements for life of any imaginable kind

I was talking to a friend of mine earlier this week about my experiences as an undergraduate in college, and it turns out that both of us relied on the same web site to get us through our late teens and early 20s. The web site is Leadership University, and it features articles on many different topics from Christian professors.

Here’s an article by famous mechanical engineering professor Walter Bradley to explain what it takes for a universe that supports complex, embodied life.

Excerpt:

We teach mechanical engineering students to begin the design process by specifying as clearly as possible the “needs statement” for their project. Then, the assignment for the semester is to develop a design solution that accomplishes the “need(s)” specified for the project. In similar fashion, the minimal needs to be satisfied for a universe to be capable of supporting life of any imaginable type, not just life as we know it, must be identified. Like our automobile illustration, many of the specifications will necessarily be interrelated to make a functional universe. From this essential “needs statement” we can then see how these needs (or design requirements) are met in our universe. We are essentially doing reverse engineering, constructing the blueprint backwards from the product (like an illicit manufacturing company copying a competitor’s product). Only then will we be ready to entertain Dawkins’ question, “Are there many ways in which these requirements could be satisfied within nature?” Or are the conditions so unique and interrelated that their collective satisfaction by accident would be a “miracle” in its own right? Let us then begin by drafting a “needs statement” for a habitable universe. Then we shall see how these requirements are satisfied in our universe.

Needs Statement for a Suitable Universe

An abbreviated list of requirements for a universe suitable to support life of any imaginable type must include the following items:

  • Order to provide the stable environment that is conducive to the development of life, but with just enough chaotic behavior to provide a driving force for change.
  • Sufficient chemical stability and elemental diversity to build the complex molecules necessary for essential life functions: processing energy, storing information, and replicating. A universe of just hydrogen and helium will not “work.”
  • Predictability in chemical reactions, allowing compounds to form from the various elements.
  • A “universal connector,” an element that is essential for the molecules of life. It must have the chemical property that permits it to react readily with almost all other elements, forming bonds that are stable, but not too stable, so disassembly is also possible. Carbon is the only element in our periodic chart that satisfies this requirement.
  • A “universal solvent” in which the chemistry of life can unfold. Since chemical reactions are too slow in the solid state, and complex life would not likely be sustained as a gas, there is a need for a liquid element or compound that readily dissolves both the reactants and the reaction products essential to living systems: namely, a liquid with the properties of water.
  • A stable source of energy to sustain living systems in which there must be photons from the sun with sufficient energy to drive organic, chemical reactions, but not so energetic as to destroy organic molecules (as in the case of highly energetic ultraviolet radiation).
  • A means of transporting the energy from the source (like our sun) to the place where chemical reactions occur in the solvent (like water on Earth) must be available. In the process, there must be minimal losses in transmission if the energy is to be utilized efficiently.

Unless ALL of these conditions and many more not included in this list are met, we would have a universe that would preclude the possibility of conscious, complex life forms. However, it is possible to meet all of these conditions for the universe and still not necessarily find a suitable habitat in the universe for complex, conscious life. Therefore, we might say that the above requirements for our universe are necessary, but not by themselves sufficient, conditions for a habitat suitable for complex human life. Next we try to identify the additional conditions within such a suitable universe that would provide a place of habitation for conscious, complex life.

Needs Statement for a Habitat Place in the Suitable Universe for Complex, Conscious Life

An abbreviated, but illustrative, list of additional requirements must be specified for a place of habitation in this universe. First, we need a star that is located in a relatively “quiet” region of the universe (e.g., not too many neighbors that are producing high intensity, sterilizing radiation). This star needs to have its highest intensity of radiation in the range that is suitable to drive the chemical reactions essential to life without destroying the products of these reactions. Furthermore, this star needs to have a very special satellite within its solar system. A partial list of the requirements this satellite must meet include:

  • a planet or moon that is terrestrial–or, solid rather than gaseous;
  • a temperature range suitable to maintain the universal solvent as a liquid rather than a solid or gas;
  • just the right concentration of heavy (radioactive) elements to heat the core of the planet and provide the necessary energy to drive plate tectonics, to build up land mass in what would otherwise be a smooth, round planet completely covered with solvent;
  • just the right amount of solvent (carefully coupled to the plate tectonics activity) to provide a planet with similar proportions of its surfaces as oceans and land mass;
  • just the right protection from the destructive forces in nature such as radiation and asteroids over a reasonable amount of time; and
  • just the right stabilized axis tilt and angular velocity to give moderate, regular, and predictable seasons and moderate temperature fluctuations from day to night.

While one is temped to think that these requirements are easily met, given the large number of stars, it should be noted that there are few places in the universe sufficiently free of sterilizing radiation to provide a suitable solar system. The number of candidate “neighborhoods” is further reduced by the requirements of a sun with the right amount of mass to give the right electromagnetic radiation spectrum. Furthermore, the occurrence of a suitable satellite in conjunction with such a star is even more problematic. Only the earth in our solar system of sixty-two satellites meets the above requirements for a “home” (earth) in safe “neighborhood” like our sun and solar system, which are well placed in a quiet place in a suitable universe as described above.

In the next sections, we will see how these universal and local “needs” (or design requirements) are met by: the specific mathematical form encoded in nature, the exact values of the universal constants in our universe, and the remarkable “coincidence” that initial (or boundary) conditions are exactly what they must be. We will also see that the “evolutional” or developmental path that our universe navigated is consistently remarkable, making the origin of our “Garden of Eden” all the more wondrous and enigmatic.

If you want to see the next sections of his article, you can click here to read the rest.

Why is this important? It’s important because a lot of people on the other side want to dismiss the fine-tuning argument by saying that if the fundamental constants and quantities specified in the Big Bang had been different, then the results would be a universe that permits life of some other kind. That’s false. If you vary the constants and quantities, you lose things that are required for any conceivable kind of complex life. You can’t form stable, metal-rich stars. The universe recollapses into a hot fireball. You have only hydrogen. You have NO hydrogen. It’s not just that people have some ridges on their noses or maybe an extra pair of arms. It’s that there is no life, period.

This is important. There are minimum requirements for life of any conceivable kind, and messing with the fine-tuning of the universe destroys the ability of the universe to provide those minimal requirements. Naturalists can smirk and shrug this off, but this is the science that we have today and we have to deal with it.

Peter J. Williams lectures on the historical reliability of the gospel narratives

Peter J. Williams
Peter J. Williams

Here’s the main lecture: (54 minutes)

And here’s the Q&A: (9 minutes)

About Peter Williams:

Peter J. Williams is the Warden (CEO) of Tyndale House and a member of the Faculty of Divinity in the University of Cambridge. He received his MA, MPhil and PhD, in the study of ancient languages related to the Bible from Cambridge University. After his PhD, he was on staff in the Faculty of Divinity, Cambridge University (1997–1998), and thereafter taught Hebrew and Old Testament there as Affiliated Lecturer in Hebrew and Aramaic and as Research Fellow in Old Testament at Tyndale House, Cambridge (1998–2003). From 2003 to 2007 he was on the faculty of the University of Aberdeen, Scotland, where he became a Senior Lecturer in New Testament and Deputy Head of the School of Divinity, History and Philosophy. In July 2007 he became the youngest Warden in the history of Tyndale House. He also retains his position as an honorary Senior Lecturer in Biblical Studies at the University of Aberdeen.

Summary of the lecture:

  • What if the stories about Jesus are legendary?
  • were the gospels transmitted accurately?
  • were the gospels written in the same place as where the events happened?
  • do the gospel authors know the customs and locations where the events happened?
  • do the gospels use the right names for the time and place where the events took place?
  • do the gospels disambiguate people’s names depending on how common those names were?
  • how do the New Testament gospels compare to the later gnostic gospels?
  • how do the gospels refer to the main character? How non-Biblical sources refer to Jesus?
  • how does Jesus refer to himself in the gospels? do the later Christians refer to him that way?
  • how does Jesus teach? do later Christians teach the same way?
  • why didn’t Jesus say anything about early conflicts in the church (the Gentiles, church services)?
  • did the writers of the gospels know the places where the events took place?
  • how many places are named in the gospels? how about in the later gnostic gospels?
  • are the botanical details mentioned in the gospels accurate? how about the later gnostic gospels?

And here are the questions from the audience:

  • how what about the discrepancies in the resurrection narratives that Bart Ehrman is obsessed with?
  • what do you think of the new 2011 NIV translation (Peter is on the ESV translation committee)?
  • how did untrained, ordinary men produce complex, sophisticated documents like the gospels?
  • is oral tradition a strong enough bridge between the events and the writers who interviewed the eyewitnesses?
  • what does the name John mean?
  • why did the gospel writers wait so long before writing their gospels?
  • do you think that Matthew and Luke used a hypothetical source which historians call “Q”?
  • which gospel do critical historians trust the least and why?

I really enjoyed watching this lecture. He’s getting some of this material from Richard Bauckham’s awesome book “Jesus and the Eyewitnesses”, so if you aren’t familiar with it, you can get an idea of what’s in it. Peter Williams is a lot of fun to listen to – an excellent speaker.

You can read an interview with Peter Williams here on Between Two Worlds.

And you can listen to the Peter Williams vs Bart Ehrman debate. That link contains a link to the audio of the debate as well as my snarky summary. It’s very snarky.

And Apologetics 315 also posted Peter Williams’ assessment of Bart Ehrman’s “Misquoting Jesus”.

What is the purpose of capital punishment? Does it deter crime?

Why do some people support the death penalty? Because research conducted by multiple teams of scholars at multiple universities have shown that the death penalty deters crime.

Excerpt:

“Science does really draw a conclusion. It did. There is no question about it,” said Naci Mocan, an economics professor at the University of Colorado at Denver. “The conclusion is there is a deterrent effect.”

A 2003 study he co-authored, and a 2006 study that re-examined the data, found that each execution results in five fewer homicides, and commuting a death sentence means five more homicides. “The results are robust, they don’t really go away,” he said. “I oppose the death penalty. But my results show that the death penalty (deters) — what am I going to do, hide them?”

Statistical studies like his are among a dozen papers since 2001 that capital punishment has deterrent effects. They all explore the same basic theory — if the cost of something (be it the purchase of an apple or the act of killing someone) becomes too high, people will change their behavior (forego apples or shy from murder).

And specifically:

• Each execution deters an average of 18 murders, according to a 2003 nationwide study by professors at Emory University. (Other studies have estimated the deterred murders per execution at three, five and 14).

• The Illinois moratorium on executions in 2000 led to 150 additional homicides over four years following, according to a 2006 study by professors at the University of Houston.

• Speeding up executions would strengthen the deterrent effect. For every 2.75 years cut from time spent on death row, one murder would be prevented, according to a 2004 study by an Emory University professor.

In case anyone is wondering what sort of crimes are deterred by the death penalty, you can read this graphic description of a recent death-penalty crime.

What sort of crimes are eligible for the death penalty?

Here’s an example of a death-penalty eligible crime from the Hartford Courant. (WARNING: graphic!)

Excerpt:

A Superior Court jury today sentenced Steven Hayes to death for the murders of Jennifer Hawke-Petit and her daughters, Hayley and Michaela, during a seven-hour home invasion, robbery and arson at their Cheshire home in July 2007.

Outside the courthouse after the verdicts, Hawke-Petit’s father, the Rev. Richard Hawke, said “There are some people who do not deserve to live in God’s world.”

Asked what he had in his heart, Dr. William Petit Jr. struggled with his answer. “….Probably many of you have kids,” he said, pausing to choke back tears. “Michaela was an 11-year-old little girl…tortured and killed in her own bedroom, surrounded by her stuffed animals….”

Petit then talked about his daughter Hayley’s bright future and her strength and the children that his wife, Jennifer, helped.

“So, I was really thinking of the tremendous loss” during the verdict, Petit said, adding that he was pleased with it, but “mostly I was sad for the loss we have all suffered.”

Asked if he thought there’d be closure now, Petit said, “There’s never closure. There’s a hole…. with jagged edges…that may smooth out with time, but the hole in your heart and the hole in your soul” remains.

“This isn’t about revenge,” Petit said. “Vengeance belongs to the Lord. This is about justice.”

[…]The jury sentenced Hayes to death on six counts: killing Hawke-Petit and Michaela and Hayley in the course of a single action; killing a child under the age of 16; killing Hawke-Petit in the course of a kidnapping; killing Hayley in the course of a kidnapping; killing Michaela in the course of a kidnapping; and killing Hawke-Petit in the course of a sexual assault.

[…]Hayes, 47, of Winsted, was convicted Oct. 5 of breaking into the Petit home, beating Petit, tying up and torturing the family as Hayes and another man ransacked the home for cash and valuables and tortured the family for seven hours. Testimony during Hayes’ trial showed that at one point in the break-in, Hayes forced Hawke-Petit to go to the bank to withdraw money. During that time, according to testimony, Komisarjevsky sexually assaulted Michaela Petit, 11.

When Hawke-Petit and Hayes returned from the bank, Hayes raped and strangled Hawke-Petit. The house was doused with gasoline and set on fire as the intruders fled, testimony showed. Hayley, 17, and Michaela died of smoke inhalation.

[…]Prosecutors used the words of Hayes’ younger brother Matthew to counter testimony that home-invasion crime was an aberration in Hayes otherwise troubled but basically nonviolent life.

Matthew Hayes portrayed his brother as a conniving, sadistic, violent thief who saw Matthew take countless beatings from his brutal father for Steven Hayes’ misdeeds. At one point, Steven Hayes held a gun to Matthew’s head, according to the statement, which was given to state police after the home invasion.

Examples of Hayes’ sadistic behavior toward his brother included hooking Matthew to the garage door by his belt and raising the door up and down, and holding Matthew’s hand to a red-hot burner. Matthew said his brother’s life of crime was not a result of bad parenting or poor childhood. He said Hayes never learned to take responsibility for his actions.

Sometimes, I think that we have stopped judging others because we do not want to be judged ourselves. We hope that by not judging anyone, that we will somehow escape being judged by anyone – especially by God himself. The opposition to punishing the guilty is, I think, really just a way of expressing our desire to do away with the idea that we will finally face judgment.We seem to be able to ignore the victim’s needs and act as if the criminal is the victim. We act as if deterring a crime with punishment has no impact on the decision making of people who are considering whether to commit the crime. But crime isn’t some random action – criminals do consider what will happen to them if they are caught. We send potential killers a message by being willing to punish the ones we catch. But if we treat them like victims, then others watching are not going to be deterred from committing crimes.