As I stated: The "Bell Labs "inventors" fumbled their way into getting their point contact transistor to work, and no magical Q.M. computations were involved.", nor were "quantum insights particularly crucial".
If you read the notebooks you will see that this is true.
And the fact of the matter is, that what lead to Bell Lab's reinvention of the transistor was not Quantum Mechanics, but was Edison's invention of the "Edison Effect", Deforest's invention of the triode, and Lilienfeld's invention of the transistor about twenty years before Bell Lab's reinvented" the point contact transistor, conveniently AFTER Lilienfeld's patent's expired.
If Bell Labs had "invented" the transistor a few years earlier, they would have had to pay Lilienfeld billions of dollars, and Lilienfeld, not AT&T would have been able to license the technology to T.I., Fairchild, RCA, etc.
-- Tom Potter