I wrote a book, very thin, called Singularities. It will come out any day in the United States and it has already come out in French a few months ago. And Singularities deals with a number of events or properties that are single in the history of life – unique. And, for instance, there is a single common ancestor for all living beings. All living beings are made of cells; singularity. All cells are surrounded by membranes based on lipid bilayers; singularity. All cells use metabolic reactions that are catalysed by protein enzymes; singularity. All living cells use ATP as a major vehicle for energy; singularity. All cells use electron transfers and proton transfers in the mechanisms serve to generate ATP; singularity. All living cells use... living organisms use DNA as the repository... the replicable repository of information; singularity. DNA in all living organisms is transcribed into RNA which does a lot of things. Some of that... much of that RNA is messenger RNA – is translated into protein; all these are common to all living beings. That's what I call singularities, and so with this little book, I've in a way done what I did twenty years ago with Blueprint for a Cell, summarising what are the really key properties of life as I see them, and of the origin and evolution of life. And one... perhaps the most... slightly original part of the book is a sentence which reads: ‘Chance does not exclude inevitability.’ Now, it's a sort of dogma among biologists and the dogma has been supported by extremely... extremely competent and charismatic and convincing... convincing preachers. I'm thinking, for instance, of the late Steven Jay Gould, Lynn Margulis and a number of others, and the dogma says the history of life has been governed by chance. If it were to be started all over again, the outcome would be completely different and so even in this history, we human beings are just accidents that... produced merely by chance.