Abstract
In 1978 George C. Williams predicted that the last two decades of this century would be a fabulous age, and that evolutionary biology would provide critical insights into the processes of change in the biological world. He suggested that these might come to be described as the “good old days”. I am not so sure that this is likely, but I am very sure that it will be a turbulent time. I think also that those biologists who attended the recent SYSTANZ meeting on evolution must by now be equally convinced. The conference was punctuated by heated debates on major topics such as Darwinian and neo-Darwinian theory, vicariance biogeography, and teleology, to mention but a few.