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1183 No. 1183 hide watch expand quickreply [Reply] [Edit]
Why use linux?
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>> No. 2363 [Edit]
Would you say that iOS doesn't just werk because it relies on an appstore?
>> No. 2364 [Edit]
ios "werks" at the expense of being crippleware. So even when it works, you'd rather not use it because it lacks basic functionality for general purpose, personal computing.

Post edited on 23rd Jul 2021, 2:25pm
>> No. 2365 [Edit]
> I have tried Manjaro, Ubuntu, Debian, and Mint, but Fedora is the only one that just killed my compulsion
I mean the latter three are basically the same thing modulo the specific desktop environment. Fedora being the end-user version of RHL is probably good for package stability. And yeah between apt and yum, yum definitely feels more robust (I really like how there's an actual database of install logs that you can revert to).
>> No. 2366 [Edit]
>Anything which relies on a package manager doesn't "just werk"
Why, what's a more bullshit-free way of installing software on a computer? You type something and it's installed. No obnoxious ads in the package manager itself, no clicky-click multi-step wizards, no checkboxes that you have to check to unbundle the bundleware, no dragging and dropping an application to mount it or whatever it is you have to do on a mac, and no "configure \ make \ make install" that's supposed to be straightforward but fails for no good reason half the time.

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2100 No. 2100 hide watch expand quickreply [Reply] [Edit]
I found a scary, but interesting toy.
Java Graphical Authorship Attribution Program
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>> No. 2105 [Edit]
Some Drexel students tried making something that could "anonymize" text input, but it doesn't use machine learning.
>> No. 2106 [Edit]
Hm it doesn't seem like it automatically does the anonymization yet. As of now it seems to just highlight the distinguishing features which the user can manually edit.
>> No. 2357 [Edit]
Maybe something like this:

Take your input sentence, "modulate" it with a random sentence to get a semantically equivalent but "encoded" version of the input.
>> No. 2358 [Edit]
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1012 No. 1012 hide watch expand quickreply [Reply] [Edit]
what do you think, /tc/?
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>> No. 1905 [Edit]
Of course it will, airplanes are powered by jets which will greatly overcome any friction caused by the runway. The real question is whether it can take off before the wheels explode from the heat. For those not in the know, an airplanes wheels are free rolling and will not provide sufficient friction to prevent the jet engines overpowering them.
>> No. 2354 [Edit]
These sorts of counterintuitive puzzles are great at forcing you to understand physics. Another one I came across which I'm still trying to puzzle out:

Which manifests in the "sailing downwind faster than the wind" thing demonstrated by Blackbird:
>> No. 2355 [Edit]
It won't, because the wings will crash into the treadmill.
>> No. 2356 [Edit]
Ok after some thinking I think I understand this now. There are two main questions to address: why the top wheel counterintuitively spins anti-clockwise despite a force directed from left to right, and why the entire contraption moves to the right faster than the ruler.

The key thing to first observe is that the bottom two wheels aren't uniform in radius. They have an inner and an outer radius (due to the nature of the cotton spoon) which is perhaps more clearly seen in this diagram [1]. This already gives a hint of why it can move to the right faster than the applied force, due to a "gear ratio" effect. However, while the calculations are useful for verifying this quantitatively, it still doesn't give a good intuitive answer, nor does it explain why the top wheel spins anti-clockwise.

The best answer I've seen is courtesy of a post on reddit [2] which I'll quote here for completeness

> For the car to move right, the little wheels must turn clockwise, and the big wheel must turn counter-clockwise. This would give you the impression that the ruler must go left to turn the wheel counter-clockwise. That is true, relative to the car.

>Looking at the construction, one immediately suspects that the size of the wheels is somehow involved. But that isn't quite it. Actually, it is because the big wheel touches the ground wheels on an axle, not the part of the wheel that touches the ground. This creates a situation where the speed the outside of the little wheels move faster (in terms of linear velocity) than the outside of the big wheel.

>So, shifting out point of view to the car, you have a wheel to the ruler, and wheels to the ground, and the wheels are geared such that both surfaces move in the same direction, but the ground moves faster, relative to the car

>So imagine now that the car has a motor, and the ruler is just resting on top. As the car moves right, the ground moves left relative to the car. The ruler moves left relative to the car, but slower than the ground. Th
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2330 No. 2330 hide watch expand quickreply [Reply] [Edit]
Let's talk about web hosting and what that involves. I'm interested in diy solutions, especially for security. Cloudflare is now ubiquitous, but is it really necessary, or are there things web masters can do to protect their website themself?

I've seen some onion sites which have a password prompt to access. A simple pop-up that requests the user type in a given username and password. Is a simple solution like that good enough to defend against ddos attack?
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>> No. 2335 [Edit]
File siff.pdf - (200.01KB )

No, not unless you fundamentally redesign the architecture of the internet. See linked paper for how to prevent ddos by redesigning connections using a capabilities-based security model.
Even if you have the best in class hardware for processing inbound packets, you're still bottlenecked by the link between you and your ISP. And most ISPs are not prepared to handle a huge spike in traffic and will blackhole you until the traffic decreases.

If you want to serve live-content immune to DDOS, at a fundamental level you need to work around the single point of failure. Either you add enough redundancy or indirection through geo-distributed servers (á la cloudflare), or you can try to get fancy with some sort of p2p-esque scheme. But I'm less familiar with the p2p solutions in this area, and you're basically trading off ease of content updates (trivial if a single server, hard when needing to deal with distributed systems that you don't even own) with robustness against ddos attack.
>> No. 2336 [Edit]
>And a static IP
You can work around this with a dyndns type setup. And in practice your assigned ip usually remains fixed unless your reboot the modem so it shouldn't be too much of a hassle. Definitely not a commercial-grade solution though.
>> No. 2337 [Edit]
>See linked paper
The solution proposed in this article requires the involvement of ISPs, at least to update routers. So is a purely software-based solution that would put the computing burden of authentication on users impossible because of the physical infrastructure of the internet?

Could the address of a website not be obfuscated in some way, and periodically changed, so that the only way to find it and send packets to it, would be for the client to run a program that solves a complicated math problem or something?
>> No. 2338 [Edit]
File savage-traceback-sigcomm00.pdf - (124.17KB )

> requires the involvement of ISPs, at least to update routers
Yeah hence why I mentioned it requires basically redesigning the architecture of the internet.
>So is a purely software-based solution
I think what you mean is whether there exists a solution that can be implemented on top of the existing routing architecture, involving only changes to the endpoints? If so, my intuition is that this is not possible because by design the way routing works on the Internet is that a client can send packets to an server without that server having prior knowledge that the client exists. And in fact, since a client can spoof the source IP the server fundamentally _can't_ be sure of the client's identity. (Note: good ISPs will have ingress IP checks and nullroute spoofed packets, but all it takes is one non-conforming ISP to allow for this).

You might be interested in the attached paper which shows that even solving a strictly simpler problem: reconstructing the path that a packet takes throughout the network (thereby preventing spoofed source IPs) is still very difficult. The authors use a very elegant packet tagging scheme and go to great efforts to maintain compatibility with the existing IP packet formats. But the fundamental limitation is that it requires a significant fraction of ISPs to adopt it, and given that packet routing is mostly done in hardware these days it will require huge costs to replace all this hardware as well. (More generally, you'll see this chicken and egg situation is the single biggest issue with bringing academic research in networking security into practice. They usually only work if there's mass adoption, but no one will be the first to adopt it due to costs).

>Could the address of a website not be obfuscated in some way, and periodically changed, so that the only way to find it and send packets to it, would be for the client to run a program that solves a complicated math problem or something?

Once you deobfuscate it on one client, you can share that deobfuscated address between all clients. The asymme
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2260 No. 2260 hide watch expand quickreply [Reply] [Edit]
Surprised this doesn't exist yet.

So what do you think the future of AI is? Do you think eventually, we'll be able to give an AI general instructions and have it program something based on that? Like "write a play station 5 emulator" and then it would actually be able do it? Would that be a good or bad thing?
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>> No. 2270 [Edit]
You could go under the assumption that there is some algorithm in the future that can have the AI adapt to situations very quickly. If the AI is tasked to doing something, it'll find any option to keep doing it. If the AI is trained to attack or learns on its own that this is an option, it may be possible. For now, reinforcement learning is incredibly slow and stupid, so it isn't possible for an AI to learn this on its own. That being said, someone could train attacking humans as an option or there is a better or extremely improved method for reinforcement learning and the AI is capable of learning in real-time. I doubt this will be possible in an extremely long time, but who knows what the future holds.
>> No. 2277 [Edit]
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Here's a related question: do you think humans will interact with their computer via ai in the future? Voice commands do exist now, but they aren't that smart. In the future, could a person say out loud
"open up directory x" and the ai would be able to do that for them? Or maybe even "copy file y in folder x". If the ai isn't sure of something, maybe it could even ask follow up questions.
>> No. 2278 [Edit]
I suspect this will be possible (in fact it's an easier task than general AI since the set of things you can do with a given application is limited). But for experienced users, interacting directly with the computer is always going to be quicker than providing mouse commands: i.e. I can drag/drop a file to the trashcan faster than it takes me to say the words.

It might be more useful for running complex queries though: "trim this video to the first 10 seconds and create a gif from that" is a lot easier than trying to remember the right command.
>> No. 2328 [Edit]
AI isn't really I, so I don't think it will be able to create emulators. However, as it advances and things are able to become more and more connected via the internet and the internet and computer processing becomes more powerful I see that it will become quite prominent in many ways. AI is not really able to think for itself but to be programmed to act in certain ways based on certain information and certain patterns, that could be incredibly powerful in middle management and we are already seeing this to a degree, programs can just order supplies, approve loans or whatever based on patterns they have been programmed to act on and as information is able to move more easily they will have more information to act on and be able to connect to more systems and be able to compute more information too as the computing power advances. Large swathes of the middle management will be out of the job.

But what worries me is the ability it will have to control populations. One could for example, create a program that is able to compute so fast and able to gather so much information that it could essentially gather the details of the entire lives of a population and then run them though algorithms and take actions based on that. It could examine every social media account and analyse the political views of everybody, if you wrong think it could bombard you with advertisements for media that would correct you or with fake accounts to hurl angry abuse at you, it could throw any post you make into the void never to be read, it could gather you and every like minded individual into watchlists or even into lists of third class citizens who are unable to access certain things or have lower priority for that access. It could simply remove every comment it does not like that is ever made, even in private conversations and stop any opposing voice even being heard.

One might think this would not happen in the west but I can easily see it. Social media already has the right to block opposing the views and they do, governments also are increasingly under pressure to stop mass shootings, a way for an AI to do this would be with a program that reads every comment ever made and every purchase and movement and runs that through an algorithm to determine the risk factor of an individual and then takes action on that accordingly(this could also be used
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1511 No. 1511 hide watch expand quickreply [Reply] [Edit]
Does science in general scare you or makes you feel small? Specially physics and mathematics? Do you ever, however briefly, think about how little the average individual knows about the universe we live in and how irrelevant we deem it to continue our everyday lives?
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>> No. 2312 [Edit]
Quanta magazine is the gold standard of understandable reporting in physics/math. Here's their explanation of time crystals
>> No. 2313 [Edit]
I think about this a lot. The half-baked rationalization I am most satisfied with for the moment is that mathematics is so successful at describing the world since it is an enormous repository of arguments; while it may not be the case that every mathematical argument is relevant to real-world phenomena, we are forced to turn to mathematics to find means of concretely describing and articulating what we observe about physical reality. Now that I write it out, though, this revelation seems pretty vacuous.

In any case, yes, it is very interesting that a handful of axioms consistent with how we understand the world could bear so much fruit.
>> No. 2314 [Edit]
"The Unreasonable Effectiveness of Mathematics in the Natural Sciences" seems relevant
>> No. 2327 [Edit]
No. The theories of mathematicians don't bother me at all.

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165 No. 165 hide watch quickreply [Reply] [Edit] [First 100 posts] [Last 50 posts]
Need help with computers? Post your questions here.

ME-tan will do her best to help (with the help of other users, ofc).
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>> No. 2297 [Edit]
How do I transfer files in Android? To my computer?
I have a full internal storage and a sd card with about 3GB free. Most of it is >>2058 this system data which is has now reached 6 GB. I just want to transfer the Love Live app, but I can't find it in Android-Data. Lots of apps I have seem not to be here.
Also, when I do find, what do I do? Just copy paste them on my pc, and copy paste them back after on a new cellphone when I get one?
>> No. 2298 [Edit]
To transfer user-data (non-application related data) you just connect to your computer; if you're on windows or linux then native MTP drivers will mean that the phone automatically mounts the storage location. If you're on osx then you're out of luck and you have to deal with the shitty "android file transfer" program (if you are planning to do this a lot, there are alternative paid mtp clients available like commander one).

For transferring applications out of the phone, I'm not sure if the default mtp mounting allows you to access files in /data. Probably easiest way I can think off is to just use adb and "adb shell pm list packages" followed by "adb shell pm path [id]" and "adb pull [path]". Note that I don't know if they changed anything in newer android versions, I'm going based off my old knowledge in the KitKat days. However, this would only get you the apk file, not back up the data associated with the application. I'm not sure why you would need the apk file itself since those can usually be downloaded online directly (verify signature of course first though).

If you want to backup the data associated with an application manually, unless you have a rooted phone I think you're out of luck since due to sandboxing and isolation (which have only gotten stricter in newer android versions) the /data/data subfolder is inaccessible to the user. It seems that the native android backup functionality [1] should back up app data for apps targeting 6.0+ [2] but

>> No. 2322 [Edit]
So, the backup function of the system only supports 25MB? That's almost nothing. Why?
My mother got me an SD card with lots of memory, so I am thinking of formatting it and using it as internal storage. I already transferred all the files from the old SD card to the computer. I am thinking of using the Card for more memory and then investigating just what the hell is up with the "System Data" folder. When I connect my phone with the computer I saw many folders of apps, of course their data wasn't there, those folders were empty but there were folders of things I deleted ages ago. I don't think they should even be there in the first place.
Moreover, the last time I tried to transfer an big app to the SD card, something strange happened. It was copied there, but when I deleted the original the one in the SD card got deleted as well. I redid this with other apps and the same always happens.
>> No. 2323 [Edit]
Native backup is 25MB per app, which honestly seems fine. I find it hard to see scenarios where user-data (n.b. not the apk itself, just the serialized user-data) will exceed 25MB unless you're trying to backup an entire database or something.

As far transferring apps to sd card (which as I understand only transfers the apk and not user-data), I don't think you're supposed to delete the original once the transfer is done. (But it's not clear to me what you mean by "delete" in this case, since apks on internal storage are not visible when connected to the computer).

If you want to store app data on the sd card rather than the app itself, I'm not sure if this possible. If you're rooted you can trivially just move it and symlink it, but if you're not rooted then I think it's only possible if the manufacturer hasn't disabled the newer flex storage feature in 6.0+ [1]


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1280 No. 1280 hide watch expand quickreply [Reply] [Edit] [Last 50 posts]
A bit late with this one, but whatever. To start off:
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>> No. 2318 [Edit]
The old internet is doomed to die without the freedom it thrived on, and that's not coming back. The clearnet is on its way to becoming the corporate web and PIA taking control of Freenode is just a sign of the times.
If you want the old internet, the darknet is where you need to look.
>> No. 2319 [Edit]
There's no need to be hyperbolic, gentlemen. Most of the original freenode staff created an alternative (, and indeed, everybody seems to be moving their channels over to it or another service, e.g. OFTC.
>> No. 2320 [Edit]
Indeed –
I just find it absolutely mind-boggling how the current admin of freenode is basically feeding the fire by banning channels and even banning clients. The stupidity with which they're carrying out actions doesn't even seem to point to a takeover with malicious intent, just plain arrogance.

Post edited on 14th Jun 2021, 3:23pm
>> No. 2321 [Edit]
>the darknet is where you need to look
Except the old internet had things of value on it. The "darknet" only has larpers, petty criminals, and alphabet soup employees. The amount of fun and creativity there is almost nil.

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1490 No. 1490 hide watch expand quickreply [Reply] [Edit]
Lets see some battle stations guys!
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>> No. 2218 [Edit]
My dad has that chair. It leans back too much for my taste. I like sitting closer to the edge of my seat, so that sloping feeling annoys me.

Post edited on 17th Mar 2021, 6:55am
>> No. 2220 [Edit]
(According to reverse image search that's Staples Hyken).
You can actually get the higher-end ones for quite cheap used. For instance, you can get Aerons for $250-$350 if you hunt around a bit. And considering that they last 20 years or so and are designed to be repairable it doesn't seem too outrageous. But I don't know if the Aerons are actually as comfortable as people say they are or they're just overhyped placebos.
There's probably a way to adjust recline tension
>> No. 2221 [Edit]
Yes, it's Staples Hyken. Sorry for not specifying that.
And yes, you can adjust the recline angle as well as "disable" it completely to allow for it to be similar to a rocking chair.
>> No. 2315 [Edit]
I was able to test a bunch of chairs in my quest to buy a comfortable one. Here are some quick thoughts, in case it might help anyone else:

* Steelcase Leap V2: A bit overrated in my opinion, I felt "boxed in" by the seat (especially the way the sides sort of curve slightly inwards like a bucket racing seat). It just felt overengineered and heavy, but a lot of people seem to like these so your mileage may vary.

* Think V1: A lot lighter than the v2, and an interesting hybrid between mesh and foam seat/back where they suspend a thin piece of foam on a bunch of metal wires that can flex to mold to your body. But in practice the seat felt pretty uncomfortable, there was almost no lumbar support 9even with their adjustable plastic contraption), and there was no way to set recline tension. I feel like there's a weight threshold to get the metal wires to actually bend, and I guess I was below that cutoff (I guesstimate you need to be > 140 ish)

* Haworth Zody: Currently trying this, I like the mesh back and its lightweight feel. It doesn't have any fancy gizmos like the other two steelcase chairs, it's just a solidly designed chair with all the things you would expect.

Note that the one chair I didn't have the chance to try was the much-hyped Aeron, although I think the hard plastic edges of the mesh seat would have been an instant dealbreaker.

If you're shopping for chairs, it would behoove you to try to find a ushed/refurbished furniture dealer nearby. Depending on your location (rural or urban) this might be easier said than done, but you can usually get chairs from liquidation places or office closing sales for a fraction of their original cost. This guy's [1] reviews of various chairs were also very helpful in identifying things to look for.


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1200 No. 1200 hide watch expand quickreply [Reply] [Edit]
intel vs amd which processor is best?
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>> No. 1215 [Edit]
>I've never once in my life heard someone refer to a GPU or APU as just a "processor".

which clearly means nobody elsewhere in the world has or ever will, as you've been everywhere in the world, all the same time, and are the authoritative expert on the subject.

>You knew damn well what he was talking about.

I never said I didn't.

>You were just playing devil's advocate for a purpose I'm not entirely clear of. To appear "knowledgeable" by making the distinction, maybe?
Perhaps I'm just arguing for the sake of arguing. On the internet. Because I have absolutely nothing more productive to do at this very moment.
And arguments are the only type of conversation I am capable of doing with another person.
>> No. 1216 [Edit]
I'll give you credit for the honesty.
>> No. 1855 [Edit]
Honestly I wouldn't notice the difference if everything worked right but subjectively speaking I choose Intel forever, just because I always had issues/subpar performance with AMD/ATI back in the day.
Also their hurr durr epyk gayming branding is fucking embarrassing. I'd never put something called Bulldozer or Ryzen in my computer.
>> No. 2300 [Edit]
Interesting how quickly things change. Intel has been sleeping at the wheel for the past two years with their "tick-tock" being more of a "tick-tick-tick". Of course Apple has hit it out of the park with their arm-based processor. One might optimistically hope this could lead to the resurgence of different isas (maybe riscv?) but we're probably more realistically going to see arm-based processors start shaving off marketshare from x64 ones. Amazon already has graviton as part of their ec2 lineup, and hopefully the momentum from apple's processor transition will lead to better tooling for cross compilations and platform agnostic primitives.

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2209 No. 2209 hide watch expand quickreply [Reply] [Edit]
tfw I'm posting from an e90 communicator. idk how to update internet (I tried everyhing, trust me) and this chan is one of the few sites which my phone is able to surf.
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>> No. 2222 [Edit]
OP here again: I'm a dumb person with many projects but few results and trying to update this shit was a funny hobby in the quarantine, however my results are still zero. Any advice? I tried also to install DOSBox but it doesn't work
>> No. 2223 [Edit]
Get a better machine.
>> No. 2224 [Edit]
Lmao like? Old computers just for remaining in nostalgic vibes?
>> No. 2299 [Edit]
Write a proxy to do the HTTPS negotiation and serve back old school HTML w/images, If you do this right you should be able to navigate to most websites and get an experience at least as good as lynx + images.

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