I understand that the unmitigated connections are at the quantum level, so when you say they don't rise above the mesoscopic, that does not come as any particular shock.  

You are asking me to explain how a new theory of Quantum Mechanics would allow Quantum Mechanics to solve our problems.  But there is no way I would expect that.  

And not only because our problems are not going to get solved.  

Rather, my guess is that a correct understanding of Quantum Mechanics would be a new model of the world, and that model would suggest many things, not only about Quantum Mechanics.  It would suggest things that would compel us to CORRECT OUR BEHAVIOR.  

What might those things be?  We'll know if it happens.  

The Fates are kind.