Quantum computers could expose our digital secrets – but there are much better reasons to build them

Quantum computers leverage quantum mechanics to operate in ways vastly different from current supercomputers, potentially solving complex tasks in days instead of trillions of years.
Initially, the threat to current encryption systems seemed paramount due to Peter Shor’s 1994 quantum algorithm. This advanced interest and funding from major military and intelligence organizations.
Despite the initial scare, protections against decryption via quantum computing have emerged, especially through the development of post-quantum cryptography standards, with significant government-led timelines for migration.
Although concerns about a “Q day” persist, prominent researchers now emphasize other benefits and practical applications, including optimization in finance, supply chain logistics, drug discovery, and artificial intelligence.
The geopolitical competition around quantum computing has shifted primarily towards its broader technological applications rather than just decryption, focusing on areas like industrial materials and advanced mathematical modeling for profit and power.

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