Month: December 2018

At year end, I have a tradition of writing a column more speculative and personal than usual.  In this post, I consider critically the standard physicalist belief that our consciousness depends on a physical brain, and hence death is the end of all awareness.  I was 46 years old when I first considered the question, … Read more

Aging is an extension of the developmental program into a phase of self-destruction.  This much has become clear (if not yet uncontroversial) over the last decade. But this insight is of little use to us so long as developmental biology is so poorly understood.  I have worked from a perspective in which development and aging … Read more