By Mano Singham

Collins also takes the familiar tack of using negative arguments for god as a wedge to get his foot in the logical door and, after doing so, to make sweeping claims. This chain of 'reasoning' will be familiar to anyone who has ever discussed the existence of god with a believer and it goes like this:

1. Start by identifying some features of the universe for which we do not currently have a good scientific explanation.
2. Assert that we cannot prove that god was not the cause of those specific events.
3. Assert that therefore it is possible that god could have been the cause.
4. Assert that therefore it is possible to believe that god can exist.
5. Assert that since god can exist and I feel that god exists, therefore god does exist.
6. Assert that since god exists, he can do anything at all, so any and all miracles are possible.
7. Grant miracle status only to those that I personally or my particular religious sect approve of.
8. Hence only my particular religious belief in god is correct and everyone else's is wrong.

This is basically how all religions justify their claims that they are the one true religion. Here are some examples from Collins's book of the first three steps of this reasoning at work. (The next four steps were also taken by him elsewhere, as I showed in previous posts. Collins is an inclusive evangelical and tries to avoid the right religion/wrong religion debate and thus does not explicitly make the last claim, although his belief in Jesus Christ as the son of god is an indirect statement of it.)

[Dawkins] argues that evolution fully accounts for biological complexity and the origins of humankind, so there is no more need for God. While this argument rightly relieves God of the responsibility for multiple acts of creation of each species on the planet, it certainly does not disprove the idea that God worked out His creative plan by means of evolution. (p. 220)
. . .
The major and inescapable flaw of Dawkins's claim that science demands atheism is that it goes beyond the evidence. If God is outside of nature, then science can neither prove nor disprove His existence. (p. 222)

This fails the logic test. As mathematician John Allen Paulos argues in his book Irreligion: A mathematician explains why the arguments for god just don’t add up (2008), basic logic requires that existence claims and universal claims be treated differently.

Existence claims can be proved but not disproved. "No matter how absurd the existence claim (there exists a dog who speaks English out of its rear end), we cannot look everywhere and check everything in order to assert with absolute confidence that there's no entity having the property." (Paulos, p. 42) But all the person making the existence claim needs to do to prove it is to produce just one specimen. So the burden of proof is on the person making the existence claim, and in the absence of such proof, it is perfectly logical to deny the validity of the claim.

On the other hand, universal claims can be disproved but not proved. For example, the claim that all swans are white can be disproved by producing just one black swan. But no one can prove the universal claim since we can never say we have checked each and every swan. So the burden of proof is on the person denying the universal claim and in the absence of such proof, it is perfectly logical to assume the validity of the universal claim.

This is how science works. Claims that Higgs bosons with certain properties exist (as is claimed by the currently dominant theory in particle physics) is an existence claim and until evidence is produced for it, it is perfectly reasonable to assume that there is no such thing. That is why over 2,000 physicists from 32 countries are involved in the building of a huge and expensive accelerator in Europe known as the LHC (Large Hadron Collider) that is designed to produce at least one such Higgs particle, even though theorists feel confident that it exists.

On other hand, the claim that "all electrons have the same rest mass" is a universal claim based on observations of a limited set of electrons and it is logical to accept it as valid until someone produces a counter-example.

The claim that god exists is clearly an existence claim, and so the burden of proof is on the believer to produce god. If believers fail to produce god or to provide indirect but credible evidence of his existence, the rational thing is to assume non-existence.

When it comes to religion Collins, like many others, abandons the reasoning powers he has demonstrated in his scientific work when he says "Atheism itself must therefore be considered a form of blind faith, in that it adopts a belief system that cannot be defended on the basis of pure reason." (p. 222)

Collins's claim is simply wrong. Atheism is the logical and rational consequence of the failure of believers to produce evidence in favor of their existence claim for god.

(This series of posts reviews in detail Francis Collins's book The Language of God: A Scientist Presents Evidence for Belief, originally published in 2006. The page numbers cited are from the large print edition published in 2007. The complete set of these posts will be archived here.)