With thanks to Jim Shedden (Toronto, ON), who spoke of two fairly recent on-line essays from Bruce Mau. The first link took me very happily to Science plus Art to Change the World presented on CBC's Radio project This I Believe and the second to Ideas Imagining the Future from Walrus Magazine.
Together, they neatly summarize Bruce's position on optimism, humanism and "design", in the sense that it's delineated in Massive Change. - Jim Shedden
Do take a look at This I Believe, and spend some time reading the articles as there are some really interesting reads there for all of us. Other than Bruce's article, do read Maria Vamvalis' Children of Our Future.