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I think the quantum superconducting transmon qubit tech is just a waste of time and money.

Reddit r/QuantumComputing (RSS)
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⚡ Quantum Brief
A Reddit user criticized superconducting transmon qubits in May 2026, calling the technology a waste of resources due to fundamental limitations in quantum computing hardware. The post highlights extremely short coherence times as a core flaw, arguing qubits lose quantum information too quickly for practical computation before errors accumulate. Scalability challenges were emphasized, citing severe wiring bottlenecks that hinder large-scale quantum processor development despite ongoing industry investments. Environmental sensitivity was another major concern, with transmon qubits requiring near-absolute-zero cryogenic cooling and remaining vulnerable to microscopic noise sources. The author concludes superconducting qubits are inherently unreliable, questioning continued funding for this approach over alternative quantum computing architectures.
I think the quantum superconducting transmon qubit tech is just a waste of time and money.

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Very short coherence times, severe wiring and scalability bottlenecks, high sensitivity to microscopic environmental noise and constant cryogenic cooling close to absolute zero. This tech is too sensitive and unreliable, period. submitted by /u/JonOwn1805 [link] [comments]

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superconducting-qubits
quantum-algorithms
quantum-hardware

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Source: Reddit r/QuantumComputing (RSS)