What if the most expensive, most hyped piece of technology in your project could be swapped out for something that ships free with every Linux install — and nobody noticed?
That’s exactly the question a developer posed in 2026 when they replaced the IBM Quantum backend in a project with /dev/urandom, a basic random number generator built into Unix-based operating systems. The results didn’t break anything. And that quiet non-event turned into one of the more honest conversations the tech community has had about quantum computing in years.
So What Even Is /dev/urandom?
If you’re not a developer, /dev/urandom sounds like a file path to nowhere. In practice, it’s a tool your computer already has that produces a stream of random numbers. It’s not exotic. It’s not expensive. It doesn’t require a refrigeration unit running near absolute zero. It just quietly does its job.
IBM Quantum, on the other hand, is a real quantum computing platform. Quantum computers use the strange behavior of subatomic particles to process certain types of problems in ways classical computers can’t easily replicate. They are genuinely fascinating machines, and real researchers are doing real work with them.
So when someone swaps one out for the other and the project keeps running fine, that’s not a story about quantum computing being fake. It’s a story about how that particular project was using quantum computing.
The Real Target Was the Project, Not the Technology
This is the part that got lost in some of the online discussion. The developer who made the swap was clear: this wasn’t a criticism of quantum computing as a field. The criticism was aimed at the specific project — sometimes referred to in the discussion as “Project 11” — and how it had integrated quantum computing into its architecture.
Comments on Hacker News spelled it out pretty directly. One commenter noted that the quantum computer component of the original solution wasn’t actually doing anything that required quantum behavior. Another pointed out that the goal wasn’t even to be faster — it was to show that the quantum component could be replaced entirely without changing the output.
That’s a meaningful distinction. Using a quantum computer to generate randomness, when a standard system tool does the same job, isn’t a use case that justifies the complexity. It’s a bit like renting a Formula 1 car to drive to the grocery store. The car is real. The engineering behind it is extraordinary. But the application doesn’t match the tool.
Why This Matters for Non-Technical People
If you follow AI and tech news, you’ve probably seen a lot of breathless coverage about quantum computing. It gets treated as a near-magical future technology that will solve everything from drug discovery to cryptography. Some of that coverage is grounded in real science. Some of it is hype that outpaces what the technology can actually do today.
What this story gives us is a useful gut-check. When a new technology gets added to a project, it’s worth asking a simple question: what is this actually doing here that something simpler couldn’t do? If the answer is unclear, that’s a signal worth paying attention to.
This isn’t unique to quantum computing. The same pattern shows up with AI integrations, blockchain projects, and plenty of other technologies that attract attention and investment before the practical applications fully catch up. The technology itself isn’t the problem. Reaching for it before you have a genuine use case is.
What Quantum Computing Is Actually Good At
To be fair to the field, quantum computing does have real and serious potential applications. Researchers are exploring its use in:
- Simulating molecular behavior for drug and materials research
- Solving certain optimization problems that are impractical for classical computers
- Breaking and building new forms of encryption
None of those use cases involve replacing a random number generator. And that’s the point. Quantum computing is a specialized tool with specific strengths. Treating it as a general-purpose prestige add-on doesn’t serve the technology or the projects that use it.
A Healthy Kind of Skepticism
The developer who made this swap did something genuinely useful. Not by dunking on quantum computing, but by asking a question out loud that a lot of people in the industry think privately: is this technology here because it’s the right fit, or because it looks impressive?
That kind of honest, practical scrutiny is how fields mature. Quantum computing will find its real applications. When it does, they’ll be places where /dev/urandom simply couldn’t do the job. And that distinction will matter a lot more than any amount of hype ever could.
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