Wieman's words proved prophetic. Though Process and Reality has been called "arguably the most impressive single metaphysical text of the twentieth century," it has been little-read and little-understood, partly because it demands – as Isabelle Stengers puts it – "that its readers accept the adventure of the questions that will separate them from every consensus." Whitehead questioned western philosophy's most dearly held assumptions about <answer>how the universe works</answer>, but in doing so he managed to anticipate a number of 21st century scientific and philosophical problems and provide novel solutions.
What philosophy in the west was challenged by Whitehead?
how the universe works