  We discuss the nature of reality in the ontological context of Penrose's
math-matter-mind triangle. The triangle suggests the circularity of the
widespread view that math arises from the mind, the mind arises out of matter,
and that matter can be explained in terms of math. Non-physicists should be
wary of any claim that modern physics leads us to any particular resolution of
this circularity, since even the sample of three theoretical physicists writing
this paper hold three divergent views. Some physicists believe that current
physics has already found the basic framework for a complete description of
reality, and only has to fill in the details. Others suspect that no single
framework, from physics or other sources, will ever capture reality. Yet others
guess that reality might be approached arbitrarily closely by some form of
future physics, but probably based on completely different frameworks. We will
designate these three approaches as the fundamentalist, secular and mystic
views of the world, as seen by practicing physicists. We present and contrast
each of these views, which arguably form broad categories capturing most if not
all interpretations of physics. We argue that this diversity in the physics
community is more useful than an ontological monoculture, since it motivates
physicists to tackle unsolved problems with a wide variety of approaches.
