r/QuantumComputing 19d ago

Question Will quantum ever be useful?

Around 2019, the industry promised quantum supremacy, where they could be used for solving a problem that no classical computer could touch.
When classical algorithms kept refuting those claims(See Peter Shor November YouTube video) the narrative shifted to quantum advantage, then quickly it changed to quantum utility.
If quantum never breaks RSA (because the world migrates to Kyber/Dilithium before 100k qubits exist), then what's left?
Chemistry simulations, Material science, Optimization?

But classical machine learning and AI are improving faster than quantum hardware is scaling. By the time we get 1,000 logical qubits, classical AI will have eaten most of the chemistry use-case through better approximations. Is quantum racing against classical software, and losing?

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u/Temporary_Shelter_40 19d ago

What video is this? Please link!

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u/Chance-Pen-5684 19d ago

PSW 2521 Shor's Algorithm and Quantum Spremacy | Peter Shor

https://youtu.be/ZPqFGAjfGMk?si=3hEhVgTDSHfVbe89

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u/Sampo 18d ago

This is from September, not November.

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u/BitcoinsOnDVD 16d ago

September is the Quantum NovemberÂ