In this chapter I will discuss three basic visions about quantum Topological
Geometrodynamics (TGD). It is somewhat matter of taste which idea one
should call a vision and the selection of these three in a special role is what I
feel natural just now.
1. The first vision is generalization of Einstein's geometrization program
based on the idea that the Kahler geometry of the world of classical
worlds (WCW) with physical states identified as classical spinor fields
on this space would provide the ultimate formulation of physics.
2. Second vision is number theoretical and involves three threads. The first
thread relies on the idea that it should be possible to fuse real number
based physics and physics associated with various p-adic number fields
to single coherent whole by a proper generalization of number concept.
Second thread is based on the hypothesis that classical number fields
could allow to understand the fundamental symmetries of physics and
and imply quantum TGD from purely number theoretical premises with
associativity defining the fundamental dynamical principle both classically
and quantum mechanically. The third thread relies on the notion
of infinite primes whose construction has amazing structural similarities
with second quantization of super-symmetric quantum field theories. In
particular, the hierarchy of infinite primes and integers allows to generalize
the notion of numbers so that given real number has infinitely rich
number theoretic anatomy based on the existence of infinite number of
real units.
3. The third vision is based on TGD inspired theory of consciousness, which
can be regarded as an extension of quantum measurement theory to a
theory of consciousness raising observer from an outsider to a key actor
of quantum physics.
Keywords: Geometrization of physics, general coordinate invariance, superconformal
symmetries, symplectic symmetries, Kahler geometry,
infinite-dimensional geometry, loop space, spinor structure, spinor field, number theory, p-adic numbers, classical number fields, infinite primes, topological quantum field theory.