Archive for the ‘Natural Theology’ Category


More on Kalam

March 21, 2010

I am persuaded by the Kalam version of the Cosmological Argument.  Here is some video of its main defender, William Lane Craig, explaining his use of Big Bang cosmology to defend premise 2 of the argument:

The universe began to exist.

These are from his 2004 Templeton Lecture, and are just the Q&A portion. I just stumbled across these, but am glad I did.  The questions in particular are more penetrating than you hear typically in debates.  Enjoy.

Q&A, Part 1

Q&A, Part 2

Q&A, Part 3

Q&A, Part 4


Moral Argument

October 26, 2009

Again, these are study notes.  There’s no real original content.

The Argument:
1.  If God does not exist, then objective moral values and duties do not exist.
2.  Objective moral values and duties do exist.
3.  Therefore, God exists.

Preliminary Definition:
For the purposes of the argument, we define “God” as at least the following: an immaterial, transcendent “law-giver”, whose very nature defines the “good”, and whose commands obligate us to abide by the “good”.

The Premises:
1.  If God does not exist, then objective moral values and duties do not exist.

  • What are “objective moral values”?  They are actions that are right or wrong regardless of whether anyone believes that to be the case.  For example, suppose the Nazis had won WWII, and defeated and killed all who thought the Holocaust was wrong.  That would not alter the fact that the Holocaust was, and would continue to be, objectively wrong.
  • What are “objective moral duties”?  They are obligations each person has to abide by objective moral values.  They are not equivalent to values.  For instance, although it may be very good to feed and clothe the poor in sub-Saharan Africea, that doesn’t mean we have to do it (it would not be our duty to do such a thing).  However, it does seem that we are obligated not to torture little children.  Likewise, we are obligated to be tolerant, generous, etc. to our neighbors.
  • If atheism is true, then moral values, as immaterial properties of the universe, could not come into existence.  For example, how would “fairness” suddenly come into existence in a purely material universe?  The concept of morals existing wholly separated from persons seems unintelligble.
  • If naturalism is true (and it typically follows from atheism), then there is no reason to think that souls with free will exist.  Accordingly, moral duties would not exist because all actions would be determined.  We could not help but do what we in fact do.
  • But suppose that atheism is true and moral values do exist.  Why think there is anything objective about them?  If atheism is true, it is more reasonable to conclude that what we call morals are mere social constructions, or agreed-upon principles that promote the survival of the community.  But there’s nothing inherently right or wrong with any act.
    • “Morality arises when a group of people reach an implicit agreement or come to a tacit understanding with one another.” (Harman, 1975)
    • “Morality is just an aid to survival and reproduction, and has no being beyond this.” (Ruse, 1989)
    • “…the sense of ‘ought’ is the effect of somebody’s imagined disapproval…” (Russell, 1948)
  • The atheist may respond that morality is grounded in the value of human beings.  However this view seems to be without justification.  For it atheism is true, there is nothing in particular that gives human beigns (or anything else, for that matter) any objective value.  In modern times this view has come to be known as “speciesism”.

2.  Objective moral values and duties do exist.  We perceive the moral realm in the same way we perceive the physical realm.

  • Through simple reflection on various hypothetical situations, we apprehend the moral component of certain acts.  For instance, torturing babies is wrong, racism is wrong, tolerance is right, loving our children is right.
  • Skepticism with regard to existence of right and wrong is analogous to skepticism with regard to the existence of the external world.  Since we have no reason to distrust our intuitions about the physical world, we have no reason to distrust our perceptions of the moral realm.  For instance, although it is interesting to speculate about a “Matrix existence” (yes, the popular movie), we have no grounds to prefer that understanding of the universe versus the “everyday” view that the world is real!
  • The atheist might object that morals are not objective because different cultures exhibit different conceptions of right and wrong, or that we learn our morality from our parents or some other social mechanism.  We can respond in a couple of ways.
    • Several values do in fact transcend cultures (love and self-sacrifice for instance).  Not all cultures exhibit mutually exclusive understandings of morality.
    • More fundamentally, this objection commits the genetic fallacy.  That is, it concludes a belief is wrong based on the method by which the belief was developed.  Much in the same way that human beings can grow in their learning of the physical world, we also can grow in our understanding of right and wrong.  But although we may progress in our discovery of right and wrong, this in no way negates the fact that certain things are objectively right and wrong.

The Conclusion:
3.  God exists.

  Craig, various presentations of the argument
  Harman, 1975, Moral Relativism Defended
  Ruse, 1989, The Darwinian Paradigm
  Russell, 1948, BBC Radio debate with Copleston


Cosmological Argument

October 24, 2009

Study notes – no original content.

The Cosmological Argument
The Argument:
  1. Everything that begins to exist has a cause.
  2. The universe began to exist.
  3. Therefore, the universe has a cause to its existence.
The Premises:
  1. Everything that begins to exist has a cause.  We consider this a “first principle of metaphysics (the study of what exists), meaning it’s more obvious than any premises or proofs suggested to defend the principle:
  • Parmenides of Elea, the ancient Greek philosopher, put it this way : “Nothing comes from nothing”
  • Stuff doesn’t “pop” into existence out of nothing.
  • A denial of the principle is more difficult to overcome than belief in magic or miracles.  For with magic and miracles, at least there is something that causes what we see, even if we don’t understand it.  However to believe something came into existence uncaused out of nothing requires suspension of one of our most basic intuitions.
  • If things could pop into being out of literally nothing, then it is curious why it doesn’t happen all the time.
  1. The universe began to exist.  There are philosophical and empirical reasons for accepting this premise.
    1. The argument against the existence of an actual infinite
      1. An actual infinite cannot exist.  Mathematicians use ‘transfinite math’ (introduced by Georg Cantor), but this does not guarantee that an actual infinite number of things exist in the real world.  Example of ‘Hilbert’s Hotel’.
      2. An infinite regress of temporal events is an actual infinite.
      3. Therefore, an infinite regress of temporal events cannot exist.  That is, the past has a beginning.
    2. The argument against the formation of an actual infinite from successive addition
      1. The temporal series of events is a collection formed by successive addition.
      2. A collection formed by successive addition cannot be an actual infinite.  One can’t count to infinity.  Why?  Because for every number you count, you can always count one more.  Another way of saying this is that it is impossible to “traverse the infinite”.  Example of the running man.
      3. Therefore, the temporal series of events cannot be an actual infinite.  That is, the past has a beginning.
    3. The expansion of the universe
      1. Einstein’s relativity theories predicted an expanding universe
      2. Hubble (1929) later confirmed this prediction by observing that all galaxies are receding; the universe is “flying apart”
      3. Hubble’s confirming discovery of the expanding universe model would lead some to conclude that the universe began to exist at some time in the finite past – the “Big Bang”
      4. Additional discoveries have confirmed the big bang theory: background radiation detected by Penzias and Wilson (1965) an important piece of evidence
      5. Other models of the universe have been proposed, such as steady-state, and the “bouncing” universe.  To quote Stephen Hawking, work by he and Roger Penrose (1970) “at last proved that there must have been a big bang singularity provided only that general relativity is correct and the universe contains as much matter as we observe”.
    4. The second law of thermodynamics
      1. “The entropy of the universe tends to a maximum”, Clausius (1865)
      2. Put another way, unless a closed system is acted upon (energy of some kind is introduced), the system will become more disorderly as time progresses.
      3. “…according to the second law the whole universe must eventually reach a state of maximum entropy…everywhere the situation will be exactly the same…There will be no objects anymore, but the universe will consist of one vast gas of uniform composition…Because almost all energy would have been degraded, i.e. converted into kinetic energy of the existing particles (heat), this supposedly future state of the universe, which will also be its last state, is called the heat death of the universe (Zwart, 1976)
      4. Examples: melting ice, rusting steel
      5. If the universe has existed forever, and the second law of thermodynamics is true, then why isn’t the universe already in a state of maximum entropy?
      6. Rather than disregard the validity of the second law (which is fundamental to scientific inquiry), we conclude that the universe began to exist at some time in the finite past.
The Conclusion:
  1. The universe has a cause to its existence.
Implications of the argument:
Nothing can be self-caused, for that requires existence before existence, or something to be distinct from itself, both of which are absurd.  Therefore, the universe has a cause to its existence that is independent of itself.  This cause must be uncaused, timeless, and spaceless.  These are key attributes of the God of the Bible.
References:         Craig, 1979, The Kalam Cosmological Argument
                            Hawking, 1996, A Brief History of Time
                            Hubble, 1929, A Relation Between Distance and Radial Velocity Among Extra-Galactic Nebulae
                            Penzias and Wilson, 1965, A Measurement of Excess Antennae Temperature at 4080 Mc/s
                            Clausius, 1865, presentation to Philosophical Society of Zurich
                            Zwart, 1976, About Time