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Most of the history of technological development is the other way around. Theory-driven novel engineering is actually quite rare.


Quantum mechanics was quite handy to develop electronics.


Quantum mechanics came about after we already had electronics. If anything it was a result of the hundred year disruption in physics that the use of electricity brought.


It did, however we would probably have hit a ceiling if QM remained unknown to us.

https://physics.stackexchange.com/questions/112615/why-is-it...


Electronics predate our physical understanding of how they work.




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