Just about all complex systems developed from four relatively simple antecedents.
Spacetime is curved.
Particles with an electric charge interact with each other through electromagnetic fields.
Quarks are confined into hadrons through the strong force.
Radioactive decay occurs through the weak force.
The entire universe is pretty much procedurally developed from those four mechanisms.
No, it's really not that simple at all.
First and most blindingly obviously, the four fundamental forces themselves would do nothing without having
matter to act upon: Physicists currently recognize no fewer than
17 elementary particles; 6 types quarks known as up, down, top, bottom, strange and charm (up and down quarks combining in triplets to form protons and neutrons), 6 types of leptons including 'familiar' electrons and exotic neutrinos, and 5 bosons one of which is a 'force carrier' for electromagnetism, one for the strong force,
two for the weak force, and one which allows other elementary particles to
have mass but is not an explanation or force carrier for gravity. Those 17 elementary particles can be distinguished or characterized by properties such as their mass, spin, electrical charge and 'colour' charge; additionally each of the 12 fermions (quarks and leptons) has a corresponding antimatter anti-particle.
- "Some physicists consider it to be ad hoc and inelegant, requiring 19 numerical constants whose values are unrelated and arbitrary.[65] Although the Standard Model, as it now stands, can explain why neutrinos have masses, the specifics of neutrino mass are still unclear. It is believed that explaining neutrino mass will require an additional 7 or 8 constants, which are also arbitrary parameters.[66]"
Of course the biggest limitation of the standard model of particle physics is that it doesn't account for the fourth fundamental force at all. You've imprecisely suggested that the spacetime of our universe is curved - as far as we can tell it's actually flat, as if even that were a simple concept! - but the force of gravity refers more specifically to the 'local' curvature of spacetime by objects with mass as described by the general theory of relativity. We haven't yet worked out how (or if) relativity and particle/quantum mechanics can be reconciled.
Secondly, as if all of that were not... um... "simple" enough so far, that all pretty much
accounts for only about 5% of the estimated mass-energy of the observable universe! "In the standard
Lambda-CDM model of cosmology, the mass–energy content of the universe is 5% ordinary matter, 26.8% dark matter, and 68.2% a form of energy known as dark energy.[7][8][9][10]" Those 17 elementary particles with all their numerical constants covered by the standard model of particle physics do not describe or account for the far larger calculated mass of 'dark matter'; and for all its own weirdness and mathematical complexity general relativity does not inherently account for the even greater mass-energy of 'dark energy' (although from what I gather a 'cosmological constant' candidate for dark energy can be independently
incorporated into general relativity).
Thirdly, while all of the above outlines our most fundamental understanding and parameterization of the current observable universe, there's still at least two aspects of its
development which they don't cover or explain: The widely-hypothesized period of
cosmic inflation during which the early universe expanded faster than the speed of light, a mind-boggling concept but widely regarded as necessary to explain the structure of our observable universe, and of course the
big bang itself.
I feel as though you're intelligent and well-read enough to have known that what you were posting above was misleading and disingenuous, at best.