Review by Aubrey de Grey

Eden and colleagues have produced a remarkably thorough survey of contemporary expert thinking concerning the technological singularity. It is particularly impressive that there is a whole section, rather than just a token chapter, dedicated to skepticism about its occurrence. The inclusion of short responses to most chapters is also highly valuable. The only issue that I was sorry to see omitted–and this may well be because too little can yet be said about it - is whether recursive self-improvement of the kind probably required for the singularity may be provable impossible, in the same sort of sense as the "halting problem". All in all, this volume will provide a wide range of audiences with an extremely timely and high-quality account of what we think, know and do not know about what could be the most transformative event in human history.

Aubrey de Grey, gerontologist, Chief Science Officer, SENS Research Foundation

(All reviews)