Philosophically this be comes a forced choice as soon as one excludes intelligent design. For the emergence of life to fall into either of these categories is perfectly acceptable to scientific orthodoxy. Davies is convinced that any laws capable of producing life must be radically different from scientific laws known to date. The problem with currently known scientific laws, like the laws of chemistry and physics, is that they are not up to explaining the key feature of life that needs to be explained. That feature is specified complexity .
Life is both complex and specified.
The basic intuition here is straightforward. A Shakespearean sonnet is both complex and specified. Now, as Davies rightly notes, contingency can explain complexity but not specification. For instance, radio active emissions from a chunk of uranium will be contingent, complex, but not specified. On the other hand, as Davies also rightly notes, laws can explain specification but not complexity.