ABSTRACT
This chapter arose in the following way: when chapters had been submitted, we listed a set of issues for each chapter which would merit further discussion amongst the contributors. Following this, we drafted individual letters to chapter authors, posing one (or several) questions raised by their chapters, and invited authors’ comments. From the responses received, we have compiled the chapter that follows. For most of the issues we raise, we consider ourselves to be relatively impartial editors, drawing from the contributors their further insights into the questions we pose. Here we are identified as “Editors”. For a few topics, however, we are certainly not unbiased, but are protagonists in the debate. For such issues we identify ourselves as “Schüz” or “Miller”. We have broken the discussion into sections, starting with detail and finishing with broader scientific and philosophical issues.
