So I have a contentious one. Quantum computers. (I am actually a physicist, and specialised in qunatum back in uni days, but now work mainly in in medical and nuclear physics.)
Most of the "working": quantum computers are experiments where the outcome has already been decided and the factoring they do can be performed on 8 bit computers or even a dog.
https://eprint.iacr.org/2025/1237.pdf "Replication of Quantum Factorisation Records with an
8-bit Home Computer, an Abacus, and a Dog"
This paper is a hilarious explanation of the tricks being pulled to get published.
But then again, it is a nascent technology, and like fusion, I believe it will one day be a world changing technology, but in it's current state is a failure on account of the bullshittery being published. Then again such publications are still useful in the grand scheme of developing the technology, hence why the article I cited is good humoured but still making the point that we need to improve our standards. Plus who doesnt like it when an article includes dogs.
Anyway, my point is, some technologies will be constant failures, but that doesn't mean we should stop.
A cure for cancer is a perfect example. Research has been going on for a century and cumulatively amassed 100s of billions of dollars of funding. It has failed constantly to find a cure, but our understanding of the disease, treatment, how to conduct research, and prevention have all massively increased.
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The big one would be viable nuclear fusion, we've been trying to figure it out and spending money on it for like 80 years now.
That being said, there's actually a lot of verified progress on it lately by reputable organizations and international teams.
It's only 30 years away!
Just like it was 30 years ago.
I've seen a road map at the start of iter which was actually more. 30 years to get a stable exo energetic plasma, then 30 years to build a demonstrator able to produce electricity, and then 30 years to have industrialised fusion plant.
As far as i know they can get it working in small scale, in labs
Essentially yes, https://en.wikipedia.org/wiki/Fusion_power#2020s
https://www.world-nuclear-news.org/articles/helion-begins-work-on-fusion-power-plant One of the commercial entities did start building a plant last year, not particularly large (only 50 MW) with an agreement to power a Microsoft datacenter, and billions in funding from government and private sources.
Hard to tell for real though because the level of secrecy around this is insanity and the US Military is heavily involved in not just this, but pretty much every similar organization.
I would not be surprised if we hear nothing, or see them "failing", even if some of these designs are fully functional already.
In its defence, that assumed it was properly funded. Its actual funding was very limited.
I believe most of the critical problems have been solved. The only major one left is keeping the reactor walls stable. They have a tendency to transmute, which causes multiple problems.

Encryption with safe, unexploitable backdoors.
https://en.wikipedia.org/wiki/One-time_pad
The one-time pad (OTP) is an encryption technique that cannot be cracked in cryptography. It requires the use of a single-use pre-shared key that is larger than or equal to the size of the message being sent.
OTPs have a safe, unexploitable backdoor feature?
Oh, nice catch, thanks. I read it as "safe, without exploitable backdoors", but that's not what he was saying.
"Smart" TVs. Somehow they have replaced normal televisions despite being barely usable, laggy, DRM infested garbage.
They are surveilance- and ad delivery platorms. The user experience is as bad as the consumer can tolerate. They work as intended.
I don't buy it, they would be better at whatever nefarious crap if they didn't take a full second to navigate between menu options, or had a UI designed by someone competent. Even people who have subscriptions to the services the TV is a gateway to have a hard time figuring out how to use them. These things aren't even good at exploitation, they are decaying technology.
If every smart TV you buy is the same, then you have no viable choices, and as such they're doing the bare minimum of what's expected for the bare minimum of cost.
You can choose not to have a TV. I only know about the current state of smart TVs because of sometimes being around the ones other people have, I would never buy one myself, there's no need. Any media you want to see can be viewed in other ways.
Do you have a 55" OLED laptop screen to watch movies and play games on?
I mean, all power to you, but I really like having a nice sized TV.
That's fair. I think if I wanted a larger screen I'd look into big monitors and some kind of expansion of my homelab setup to display things to it, but I can see why people might want a dedicated device with less setup required, even one where the setup is still pretty confusing.
I looked up some statistics and it seems, depressingly, that consumers are in fact buying more televisions and it's projected to increase, so I guess I have to concede the point that what they are doing is successful despite all reason.
You're not kidding. It's pretty difficult to not buy them.
It's a $250 smart TV vs a $2000 non-infested TV.
Man, I haven't really faced this yet. My flat screen is a really old Panasonic plasma and it is"barely" smart. It came with a few apps on it. I ignore them and use it as a dumb monitor, running everything through my receiver instead. When it dies, I don't know what I'll do.
You can disconnect them from the WiFi and block their ability to connect and then use a third party device for any apps you want.
I recently bought a TV on behalf of a friend( because it was cheaper at Costco) and when we got it to his house and connected it, it asked him to give up his privacy like 11 times. If he said no, would it still have worked?
They're more expensive, but check out commercial displays. They're basically just big "dumb" TVs for businesses to display menus and whatnot, usually with a single HDMI and no sound, but those limitations can easily be bypassed with a stereo receiver.
Only if you use it as a smart tv - I just never signed the user agreements, and now have a big TV with OLED. I switch to the source I want - off I go. Television can still just be television!
you can buy business-grade stuff without all the spyware shit, it's just much more expensive
Curious what your preferred streaming box is, considering changing my Android TV so that it launches to HDMI, disconnect from internet, use a streaming box that isn't as slow and has a hardwired connection instead.
Printer drivers.
Apparently sending data serially at glacial speeds is impossible.
Printers.
I think there is an open source printer being created. Potentially has the chance at being the only printer that isn't a pile of shit.
I really liked my old brother laser printer.
Keyword in that is 'old' - new printers are shit, and Brother printers have been pretty bad in my experience as well. Most any new printers I've touched is just terrible.
But then again, I stan my old HP color LJ that I got for free from the early 2010s that I got when my employer went to a printer contract service and just dumped all the printers they currently had. That fucker runs like a champ and has let me put in after market toner carts without much complaint and 0 printing issues. Modern HP printers only belong on fire.
I've seen that project. Complete radio silence since the announcement and zero path to releasing anything.
It really sucks.
I'm sceptical any open source printer wouldn't run into trouble regarding patents.
I have a black and white laser printer
a Brother, FWIW
that works great. It sits there and when I print the occasional document, flips on and quietly and quickly does its thing. I remember printers in past decades. Paper jams. Continuous-tractor feed paper having the tractor feeds rip free in the printer. Slow printing. Loud printing. Prints that smeared. Clogging ink nozzles on inkjets.
It replaced a previous Apple black-and-white laser printer from...probably the early 1990s that I initially got used which also worked fine and worked until the day I threw it out
I just wanted more resolution, which current laser printers could do.
The only thing that I can really beat the Brother up for is maybe that, like many laser printers, to cut costs on the power supply, it has a huge power spike in what it consumes when it initially comes on; I'd rather just pay for a better power supply. But it's not enough for me to care that much about it, and if I really want to, I can plug it into power regulation hardware.
It's not a photo printer, and so if someone wants to print photos, I can appreciate that a laser printer isn't ideal for that, but...I also never print photos, and if I did at some point, I'd probably just hit a print shop.
Nah.
The printer / multifunction I have right now is pretty magical. It just works. It's a solved problem.
I think the problem is that the cheaper ones are hostile.
Flying cars. The idea has intuitive appeal
just drive like normal, but most congestion problems go away!
https://en.wikipedia.org/wiki/Flying_car
We've made them, but the tradeoffs that you have to make to get a good road vehicle that is also a good aircraft are very large. The benefits of having a dual-mode vehicle are comparatively limited. I think that absent some kind of dramatic technological revolution, like, I don't know, making the things out of nanites, we'll just always be better off with dedicated vehicles of the first sort or the second.
Maybe we could have call-on-demand aircraft that could air-ferry ground vehicles, but I think that with something on the order of current technology, that's probably as close as we'll get.
The thing is how is a flying car different from a aircraft?
We have (ultra) light aircraft not much more expensive than a good car, we have helicopter with vtol abilities. Licencing isn't that more complex than for a car.
The problem are the maintenance cost as a failure would be dramatic, and the noise meaning people don't want them over their bacxyard/balcony
I don't think any government will ever allow flying cars.
Too prone for accidents, and way too much freedom.
There are many models of flying cars. They usually are bad cars and bad planes and very expensive. Only good for niche wealthy enthusiasts.
Haha I feel like VR has already found it's niche!
Apple taking over an entire car with car play ultra or otherwise comes to mind. Latest Aston Martin model with car play ultra was atrociously laggy, ran instrument panel screen at like 12fps.
The shit with VR, specifically, is baffling to me. We have pretty good tech for it and yet nobody seems to know what to actually do with them. Hardware is at a good starting point, but the software is mostly bullshit.
For sim racing games, it's actually pretty helpful for being able to look around, check mirrors etc.
Outside of that it feels pretty gimmicky
I shit you not I know a University where they have AR (with haptic gloves, not just VR) headsets worth around 70k euro and nobody uses them.
A student watched porn in class on one of them though, so I guess the taxpayer investment was worth it...
Gaming. It has completely replaced flatscreen gaming for me. Playing FPS on a screen feels so ridiculous to me now.
I remember setting up a VR og Skyrim with an old android and some infrared LEDs. It was pretty cool at first, but I couldn't play more than an hour without some kinda discomfort. I've tried some of the newer guys, and aside from being much higher def, it's largely the same thing. I don't want or need it in my life.
Games designed specifically for VR are pretty cool. Conversions less so.
Beat Saber and VRChat are genuinely cool at least. I think what it comes down to is that the illusion of physically being somewhere is cool and can be useful for some stuff but not as cool as everyone used to assume. More abstract entertainment and art works basically just as good or better most of the time because it doesn't require specialized hardware, acclimating to nausea, and learning novel control schemes.
I really like VR gaming. If only they would develop better FOV to get rid of some “porthole effect” and drop in some screens that don’t have the screen-door resolution. I played Elite:Dangerous for years on VR and it’s totally worth it. If only there were a way to get first-person shooters working better it might take off.
because it doesn't offer anyone any really value.
it's massively inconvenient and expensive compared to non-vr versions.
i worked on a VR program 20 years ago. the same issues persist today as they did back then. it's still bulky, uncomfortable, annoying, and way too many people get sick from using it for any prolonged period of time. if 50% of your users throw up after 5 minutes, you don't have a viable product.
it's only really good for short term novelty experiences. and that's where it overwhelmingly gets used, always has, and always will.
VR has given us an incredible amount of funny videos where the user will decide to run full speed into a wall or something. That and "hoverboards" have kept America's Funniest Home Videos on the air.
I'll go against the grain and say literally all of it. Every piece of technology that exists is a compromise between what the designer wants to do and the constraints of what is practical or possible to actually pull off. Therefore, all technology "fails" on at least some metric the designer would like it to achieve. Technology is all about improvement and working with imperfection. If we don't keep trying to make things better, then innovation stops. With your example of VR, I'd say that after having seen multiple versions of VR in my lifetime, the one that we have now is way more successful and impactful, especially in commercial uses rather than consumer products. Engineers can now tour facilities before they are built with VR headsets to see design flaws that they might not have seen just with a traditional model review, for example. Furthermore, what we have now is just an iteration on what we had before. It doesn't happen in a vacuum, people take what came before, look at what worked and what didn't, and what could be fixed with other technologies that have developed in the meantime. That's the iteration process.
Iteration isn't a claim that the predecessor was a failure though, you iterate on the successes of the prior generation. It used to be that technology advanced so rapidly that the cutting edge became obsolete in a matter of a few years, but for that time it was a success.
I think there's also an assumption of design philosophy here. One designer might put many generalized requirements into their design, then you get Google glasses, AI, NFTs and so on. This means everything is a failure because it couldn't achieve the requirements. Others may pick a small set of very specific requirements, then you get the iPhone or a Toyota hilux. These are massive successes because they had cohesion in the idea and planned as to about compromise.
Pesticides.
We came up with this brilliant idea of planting a single crop per field which creates the perfect environment for the things we call "pests". We invented pesticides to kill the pests, which incidentally also kill their predators and competitors, making the environment even more favorable when the pest returns. So we started using more and stronger pesticides, creating a dependency cycle, with the added bonus of poisoning the ground, the water table, the oceans and ourselves.
Indeed, I was referring to polyculture.
Tablets have had a couple of "waves". They've never really gone away, but also haven't really become the norm, either, not in the larger-than-a-current-smartphone sense.
Yeah, similar to VR, they have their use, but compete with technology that pretty much everyone already has, so when push comes to shove, people will use what they have.
Tablets are in such a weird middle ground spot now that they really seem like a niche device.
For heavy tasks, you probably want a full-fledged computer (laptop or otherwise). For lighter weight tasks, phones have gotten large and capable enough.
I can see them useful for parents. Also in commercial/professional settings, like a doctor's office using tablets for patients to fill out their info.
The problem is that a tablet ends up just being a cheap computer, but Android requires a lot more involvement of OEM's to update compared to Windows.
What? Tablets are super common.
They exist
and in fact, I have an Android tablet in my backpack right now
but a lot of people felt that they were going to become a major computing paradigm, and that hasn't happened.
In practice, the PC today is mostly a conventional laptop. Hybrid laptops with touchscreen exist, but they aren't the norm.
Mobile OS tablets also exist, but they haven't managed to take over from smartphones or approach their marketshare, and there are fewer options on the market than there were a few years back; "mobile OS" tablets today are mostly, as best I can tell, a specialized device to use for video-watching with a larger screen than exists on a phone, with a larger screen and better built-in speakers, but without the sensors and radio suite. Not all that much uptake.
I know a ton of people who don't own a "PC" anymore, and instead have a tablet with one of those keyboard covers as their largest home computing device.
I only know one person with an iPad. Total apple fan boy, watch, phone mac etc, I dont know one person with android tablet - all our students have windows laptops
You realize Microsoft has an entire line of business tablets right? Google Microsoft Surface, they've been around for many years.
I think your personal experiences may be biasing your thinking on this one.
Yes. My girlfriend once owned a surface. I know what google is. I was clearly giving a personal account, I didnt say 94% of all people worldwide dont use tablets. You realise that right? Do you realise that microsoft has a line of laptops too? And they make operating systems for dekstop PCs? You realise that right? That would be quite the statement if it meant anything. Nike have an entire line of shoes, but they sell shirts too? You realise that right?
The original question was "constant failures, but we can't stop trying to make it work"
Tablets are clearly "working" already, they aren't a failure as a product category in any way. Companies aren't going bankrupt and cancelling lines of tablets to refocus on other products. They're just part of a standard product mix these days.
Ok, so, you responded with anecdotal evidence to someone who said they think tablets are a failure, which I replied to with my own anecdotal evidence. At no point did I say I agree with tablets being a failure. I was just countering your anecdote with my own. You came back at me in a condescending manner. I'm allowed to post my personal observations without being treated like a stone age moron who has never heard of a surface or tablets. So I replied in kind.
You can argue all you want, but thats not going to change the statement, my initial statement "I dont know anyone with a tablet, except for one", which is all I said.
Personally I think laptops are great for work, programming dealing with 200 emails, having 45 tabs open, and all bloody office apps across two screens at same time, but tablets, great with a cat on the lap on the sofa. Original marketing hype was that anything you can do on desktop you will be able to do on tablet. It's just not true. And reality. They just smartphones with bigger screens. So from a certain pov, they can be considered a failure. Which in my world, is true.
Flying cars.
If you mean flying cars that will replace regular cars, I don't think anyone ever tried it really. There have been prototype cars with wings but no one took that seriously. More recently what everyone keeps trying is drones as taxis but I hope that fails because I don't want that noise pollution.
Probably not top ten of mind, but Carbon Capture and Storage (CCS) has been trotted out by the fossil fuel industry for a generation as a panacea for carbon emissions, in order to prevent any real legislation limiting the combustion of hydrocarbons.
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