Say that a model like that would be possible to create, it won’t be created in a vaccuum, other companies would invest billions into new models trying to compete with this new model, creating a new kind of market, needing new tactics that the super model probably can’t deal with as well.
The stock market is a completely irrational market, look at GameStop, the stock became crazy overvalued and bore little resemblance to the actual company value.
In this irrational marketplace you can’t rationolize it with models and expect them to work long term, the market can shift in an instant in ways that computer’s can’t predict just as other changes are changes that humans can’t predict, I doubt there will ever be a super model that can do it all for any kind of extended time