The "breakthrough models" are not stable and fall apart as soon as the world financial landscape drastically changes.
It took me 17 years to build a working model (black box) and my secret ingredient was an "organic" sub formula
that allow the core structure of the model to adjust with the changing financial landscape.
It took me 17 years to achieve a working model...and at the
end, it became so simplistic...no need of complex mathematical theorem...the bare minimum... so easy, a 9 year old could process it in a few minutes...