  It is argued that quantum mechanics follows naturally from the assumptions
that there are no fundamental causal laws but only probabilities for physical
processes that are constrained by symmetries, and reality is relational in the
sense that an object is real only in relation to another object that it is
interacting with. The first assumption makes it natural to include in the
action for a gauge theory all terms that are allowed by the symmetries,
enabling cancellation of infinities, with only the terms in the standard model
observable at the energies at which we presently do our experiments. In this
approach, it is also natural to have an infinite number of fundamental
interactions.
