In a review for Thomas Nagel's Mind and Cosmos, John Dupré, takes issue with Nagel's assertion that reductive materialism is regarded as the only serious philosophical possibility within mainstream philosophy. According to Dupré, reductionism has been almost entirely rejected by philosophers engaged in the biological sciences. I've been a regular reader of the Askphilosophers.org website and from what I've learned here, physicalism is the widely accepted position. Even the Stanford encyclopedia says that physicalism is the "default" attitude among philosophers. Is there something I am missing, or is John Dupré correct?