William Lane Craig vs. Sean Carroll cosmology debate now online

In my personal opinion, I think the most important thing to come out of that weekend for ID was this paper delivered on Saturday by Robin Collins:

The Fine-Tuning for Discoverability - Robin Collins - March 22, 2014 Excerpt: Examples of fine - tuning for discoverability. ,,A small increase in ? (fine structure constant) would have resulted in all open wood fires going out; yet harnessing fire was essential to the development of civilization, technology, and science - e.g., the forging of metals.,,, Going in the other direction, if ? (fine structure constant) were decreased, light microscopes would have proportionality less resolving power without the size of living cells or other microscopic objects changing.,,, Thus, it is quite amazing that the resolving power of light microscopes goes down to that of the smallest cell (0.2 microns), but no further. If it had less resolving power, some cells could not be observed alive. The fine - structure constant, therefore, is just small enough to allow for open wood fires and just large enough for the light microscope to be able to see all living cells. Predictive and Explanatory Power of Discoverability - Cosmic Microwave Background Radiation Prediction: DLO: Within the range of values of a given parameter p that yield near - optimal livability, p will fall into that subrange of values that maximize discoverability (given constraints of elegance are not violated). In every case that I was able to make calculations regarding whether the fundamental parameters of physics are optimized in this way, they appear to pass the test.[iv] This alone is significant since this hypothesis is falsifiable in the sense that one could find data that potentially disconfirms it – namely, cases in which as best as we can determining, such as a case in which changing the value of a fundamental parameter – such as the fine - structure constant – increases discoverability while not negatively affecting livability.[v] Below, I will look at a case from cosmology where this thesis could have been disconfirmed but was not.,,, The most dramatic confirmation of the discoverability/livability optimality thesis (DLO) is the dependence of the Cosmic Microwave Background Radiation (CMB) on the baryon to photon ratio.,,, ...the intensity of CMB depends on the photon to baryon ratio, (??b), which is the ratio of the average number of photons per unit volume of space to the average number of baryons (protons plus neutrons) per unit volume. At present this ratio is approximately a billion to one (10^9) , but it could beanywhere from one to infinity; it traces back to the degree of asymmetry in matter and anti - matter right after the beginning of the universe – for approximately every billion particles of antimatter, there was a billion and one particles of matter.,,, The only livability effect this ratio has is on whether or not galaxies can form that have near - optimally livability zones. As long as this condition is met, the value of this ratio has no further effects on livability. Hence, the DLO predicts that within this range, the value of this ratio will be such as to maximize the intensity of the CMB as observed by typical observers. According to my calculations – which have been verified by three other physicists -- to within the margin of error of the experimentally determined parameters (~20%), the value of the photon to baryon ratio is such that it maximizes the CMB. This is shown in Figure 1 below. (pg. 13) It is easy to see that this prediction could have been disconfirmed. In fact, when I first made the calculations in the fall of 2011, I made a mistake and thought I had refuted this thesis since those calculations showed the intensity of the CMB maximizes at a value different than the photon - baryon ratio in our universe. So, not only does the DLO lead us to expect this ratio, but it provides an ultimate explanation for why it has this value,,, This is a case of a teleological thesis serving both a predictive and an ultimate explanatory role.,,, http://home.messiah.edu/~rcollins/Fine-tuning/Greer-Heard%20Forum%20paper%20draft%20for%20posting.pdf

Of related interest:

We Live At The Right Time In Cosmic History (To see the Cosmic Background Radiation) - Hugh Ross - video http://vimeo.com/31940671

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