|quote=}}</ref> As an example he is pointing at the [[origin of life]] and of the [[genetic code]] and suggests that we may be faced with the possibility that the origin of life (like [[Singularity|the origin of physics]]) becomes an impenetrable barrier to science, and a residue to all attempts to reduce biology to [[chemistry]] and [[physics]].<ref name="Incompleteness">{{cite book | |quote=}}</ref> As an example he is pointing at the [[origin of life]] and of the [[genetic code]] and suggests that we may be faced with the possibility that the origin of life (like [[Singularity|the origin of physics]]) becomes an impenetrable barrier to science, and a residue to all attempts to reduce biology to [[chemistry]] and [[physics]].<ref name="Incompleteness">{{cite book |