A young boy in Glasgow.A young man at theological college.An aging painter.Sean Burnett is all of these, viewed through his own eyes and those of the people closest to him. 'Are our lives a single thread, ' he asks, 'flowing smoothly from one instant to the next? Or are they composed of a series of discrete temporal packages? Digital lives, rather than analog lives.'This painting, 'The Woman by the Urn', will be his last great project. Will family...