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Posted on 01/01/2026 8:51:52 AM PST by MarlonRando
Quantum computers have made a massive splash over the past years, with quantum computing projects racking up billions of dollars in private and public investment. But according to a small group of physicists, quantum computers will never scale to any meaningful level. Let’s take a look at their reasoning.
(Excerpt) Read more at youtu.be ...
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Will it work out? Will investors see profit? Who knows. I like Sabine Hossenfelder the youtube physicist. Neil DeGrasse Tyson gets a lot of attention, obviously, but if you actually want to learn something— watch her.
It’s a good thing we didn’t have social media during the Industrial Revolution.
Steam power? It’ll never catch on!
Power looms? Who needs them?
Locomotives and rails? Bah, going 15 mph is dangerous! Ridiculous!
Steamboat? Pshaw! They blow up!
Electricity? You could get electrocuted!
Automobiles? Why? I’ve got trusty old Dobbin in the barn!
Or they might.
It’s the “uncertainty principle” 😊
The world’s leading quantum computing company makes a profit every year.
IBM.
I spent the day with a physicist at my alma mater; he is the head of his department’s quantum computing project. He talked about the practical problems in the field, and they’re daunting. The three biggest ones are stability, signal-to-noise ratio, and interfacing to outside (i.e. non-quantum) electronics. In each of these areas, improvements on the order of four or five orders of magnitude have yet to be made.
That’s not to say they won’t be made. In conventional electronics, specifically in the field of semiconductors and integrated circuits, improvements of six or seven orders of magnitude have been made, but we’ve been working on it for more than seventy years.
It was always a scam to fleece investors. Hopefully we psyop’d China into diverting large resources into it.
Bkmk
Telephones? Forgetaboudit!
“The three biggest ones are stability, signal-to-noise ratio...”
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I take it that the quantum error handling problem is included under this? I believe its a fundamental challenge with quantum computing, at this point.
I’d like to get me one of them quantum computers. How tiny is the keyboard and how fine are the fonts?
Hey, Can’t AI fix those problems?
I think so, yes.
I believe he called it "fragility."
The circuit elements have to be kept really cold. I mean, much colder than is needed for superconductivity, which is a quantum phenomenon, but has little to do with quantum computing.
We're talking milli-Kelvins.
Another major problem is the absence of “software” for the quantum computer. It is harder than most people think to apply the quantum computer to solve meaningful problems. There are some well-known applications, like factoring integers, but the number of known useful applications is still limited.
The share of IBM’s revenue since 2017 that comes from quantum computing is 0.2%.
You’re right! One can learn a lot from physicist Sabine Hossenfelder. All one can learn from Neil DeGrasse Tyson is atheism, which is totally false!
Meanwhile, we may or may not be able to develop quantum computers. But humans will never go to Mars!!
There’s been some talk about putting data centers out in space because of the cooling problem. Sounds crazy, but maybe not.
Yes, although I believe credible attempts have been made on this front.
We’ll said. But many breakthroughs occur because of serendipity, which is a random disruption thus impossible to predict.
IBM was talking about the possibility of orbiting computing satellites back in the 1980s. I actually heard a story on NPR about it, back then.
Believe it or not, once upon a time NPR was delightful to listen to. More than 40 years ago.
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