Thoughts on the dynamics of foundations,or what I believe

Unification of physical theories is an ambiguous idea. Gravitation is perhaps distinct from other interactions. Arguments for a unification can be found, either from an analysis of the nature of time, or from the canonicity of most formalisms used in physics. Space-time continuum requires a physics of fields, but not necessarily of quantized fields. Various notions of space as used in physics show that these spaces—including Newtonian space—are never real spaces, but inventions of the mind not only useful, but necessary for the development of many physical theories. Time is, on the other hand, real.