> It's really not uncommon, I find it hard to believe that you've never run into shit/barf, usually when a car pulls up that has nobody in it, that's what's in there.
NGL this isn't surprising on Japanese trains either. Especially around last train. It's not super common but you see it from time to time and you just use a different car and report it to the staff next time you see someone.
> All the random busker type nonsense, the petty crime and the “mugger wallet” type jokes.
Most of this is stories. Yeah there are buskers but tbh I like buskers. Music in the public square is a plus not a minus even if it's not my personal preference of music.
Subway crime rates are around 2-4 incidents per million rides. There was a spike during covid and it started to rapidly trend down afterwards. That corresponds with economic desperation during that period pretty cleanly.
But that 2-4 incidents per million rides is roughly comparable to the crime rates at gas stations, etc. The difference is that density is lower so you just see it less often. It happens just about as frequently but you are less likely to witness it because you are less likely to be present when it happens to somebody else at a gas station.
> I’d still rather not deal with the expected culturally imposed insanity that the Japanese curiously seem to lack.
Trust me Japan has just as much of an issue with crime on rail. Arguably they have higher rates but the Japanese police often just don't consider sexual harassment or sexual assault a serious crime and would rather brush it under the rug or otherwise deal with it outside the criminal system to avoid harming the abuser. (ex: an incident that I'm familiar with: "oh we gave the guy who assaulted you on the train your address so they could mail you a hand written apology note instead of charging them with assault")
And the "wacky in your face" crime (intoxicated, mental illness, etc) is still very much an issue in Japan but it's cracked down on by police in places that tourists frequently visit during the day and otherwise everyone just expects it so people who live there don't really mention it to tourists.
I mean hell look at Shibuya Meltdown for some of the more mild "funny" examples.
The only real difference between the NYC metro and the Japanese metro is that it's louder because there's not a social norm to limit talking on the train (until people are drunk ofc). Otherwise it's all the same shit and you see it all when you start commuting.
It really depends on the person. I've been involved with music in some capacity basically my entire life. I can do pitch but I have never been able to maintain a tempo to save my life (to an almost morbid degree).
I could practice technical skill on an instrument to literally no end but ultimately anything I did outside of a several second stretch by myself was completely disoriented due to a total and complete inability to maintain a tempo even when it's provided to me.
So for me there is just a hard ceiling on my ability to ever perform. I could probably do better with digital music production if I invested the time and energy into it but I'll always have the handicap that I have and knowing that it's hard to even want to invest the time and energy into trying yet another path into music where I'll likely fall flat on my face again.
Until my late 20s, I was bad with both pitch and rhythm despite playing guitar for over a dozen years. Then I took singing lessons with a professional opera singer for 9 months, one hour a week.
She stressed how important it was to record myself and listen back, in fact she encouraged me to do it for hours at a time. The immediate reaction the first few days of trying this was "holy crap, not only am I pitchy and can't hear it naturally, I'm constantly slowing down and speeding up like +/- 10bpm."
The experience was so distressing that I tried to quit my next lesson, but she pushed back with "Hey if you can hear it, you can fix it. It won't be tomorrow, or next week, or even next month. It could take a year. Improvement happens little by little. And I guarantee you'll see progress as it happens. But you have to put in the work."
After a few weeks of working up to it, I settled into a pattern of spending ~3-5 hours most weeknights in the darkness of my closet, recording myself playing Beatles songs along with an acoustic guitar into a 4-track. Usually just going back and forth over 4-8 bars of a song for 30 minutes, then 30 minutes another section, really just focusing on a couple songs like that. Toward the end of the session I'd attempt several full run throughs, get super frustrated (over increasingly minor issues), and end the session.
And she was right, by about the third month I was comfortable enough to perform in front of the person I was seeing, and by month five, I could get through a song with barely any mistakes, maybe one out of three chances. By the ninth month, after a 15 minute warmup, I could get through a 3 song stretch with just minor errors, enough not to totally embarrass myself at an open mic night.
At that point I felt I hit my goal and took a break from lessons. Never did an open mic night. Continued practicing a bit in my closest, but after a month or two I stopped as well.
And here 20 years later, my rhythm actually is pretty solid... I've been a consistent bedroom guitarist, and routinely record myself, and sometimes I don't bother with a metronome because it sounds that consistent. That said, I stopped singing and that ability is completely gone. But I am starting a similar process learning classical guitar.
So I go back to that original bit of advice with just about anything I try to tackle now... if you're self-aware of your issues, and can actually critically hear them in a recording, then there is a path forward.
Understood, but to be clear, I felt the same way after I heard how off I was, as if maybe there was something defective with my brain.
Just start small, record 4 bars of something, play it back. Use a metronome to gauge the actual amount of drift. See if you can hear what the metronome is telling you. Try to improve it with a few more attempts, then call it a day.
Try again after a good night's rest. Over time you should be able to naturally feel when you're slowing down or speeding up.
I am the same way. I am a music lover, I am good with pitch, can accurately tune a guitar from new strings to within a few cents with no reference. But I can barely clap along with a metronome for more than a few bars. I have had years of lessons but my lack of rhythm really makes it almost impossible to progress despite putting in a lot of practice. My wife who plays guitar for fun will walk up while I am laboring over a piece that I have been working on for weeks and do a better job after two tries. It’s really demoralising! It feels like most people can do rhythm like walking or breathing, but for me it takes 100% CPU and leaves little for anything else.
Even with an extremely low resolution radar hit they are very identifiable.
Most naval vessels move in groups/squadrons. Carriers basically always travel with a "carrier strike group"/CSG of a dozen other ships and destroyers often travel in "destroyer squadrons"/DESRONs. So any time you see a cluster of hits, just by the relative responses of each hit you can narrow down and guess the entire CSG/DESRON in one go and then work out which responses map to which ship in the CSG/DESRON once you have a good idea of which group you are looking at.
This is especially true because ships even within the same class have varying ages, different block numbers, and differing retrofits. So each one has a unique signature to it.
But also if you aren't completely certain you can always come back with a second high resolution pass and then it's trivial to identify each ship just visually.
Granted, but how does satellite radar actually see ships at all? How do the ships not blend into the ocean (the relative difference between the distances between ship<->satellite and ocean<->satellite is minescule)?
It is in part for small crafts (frigates and corvettes) but for pretty much anything larger there's no concealing those ships.
The primary reason however for minimizing radar cross section and increasing radar scatter is to harden protections against radar based weapon systems during a conflict.
Even if the ship is still visible in peacetime operations, once electronic countermeasures/ECM are engaged, it gets an order of magnitude harder for guided missiles to still "see" the ship.
Depending on the kit, once missiles are in the air the ship and all of their friends in their strike group/squadron is going to start jamming radar, popping decoys, and trying to dazzle the missiles effectively enough for RIM-174/SM-6, RIM-66/SM-1, and RIM-67/SM-2s to intercept it without the missiles evading. And should the missile make it to close-in range then it's just praying that the phalanx/CIWS takes care of it.
And if everything fails then all that jamming and dazzling + the reduced radar cross section is going to hopefully result in the missiles being slightly off target/not a complete kill on the vessel.
So they still serve a purpose. Just not for stealth. Instead serving as compounding increases to survival odds in engagement scenarios.
But what you're describing is stealth. "Stealth" doesn't mean "invisible". Humans wearing combat fatigues aren't literally invisible either especially when moving, they're just harder to track/get a visual lock on to aim at.
The point still stands that you cannot rely on "ocean is too big for anyone to find me" because it very much is not.
I think you are sim-interpreting what I was saying (and if you see what I've posted elsewhere in the discussion thread I'm very much in agreement with you).
I was just saying that stealth is a component of ship design for small crafts (i.e. those that would generally stay close to the coast) but that it's not the case for larger ships and even for those smaller ships it's just not the primary purpose for radar optimized hulls.
Close to the coast, non-coastal radar won't be able to detect ships nearly as well as out at sea where they stand out like a sore thumb. And of course coastal radar will still light up any ship so stealth there is of little value on foreign shores.
But really outside of some niche cases for small crafts, radar "stealth" is all about survivability and not the traditional view of stealth.
Well in that case congratulations. You've just made it easier. Now you don't even have to track them. You just have to look for the blacked out box, the "error we can't show you this", reused imagery from their long running historical imagery dataset, or improperly fused/healed imagery after alteration.
So now you don't have to do the tracking, just find the hole.
And then you can use a non-US provider to get direct imagery now that you know exactly where to look.
Note that that article is from 2020. Nowadays the frequency is actually down to 90 minutes/1.5hr. The resolution is up as well and they can do massive image capture (~500km^2) and video (120sec stream) from their passes.
Also nowadays they provide multi-spectal capture as well which can mostly see through cloud cover even if it takes a bit more bandwidth and postprocessing.
You certainly can't do continuous observation but even just with commercial satellite offerings you can get pretty close.
For example nowadays Planet Labs [1] offers 30-50cm resolution imaging at a rate of one image or 120sec video stream every 90 minutes over a given 500 km^2 region. There is no situation where an aircraft carrier is going to be capable of evading a commercial satellite offering with that frequency and resolution. Once you know approximately where it is or even where it was in the semi-recent past, it's fairly trivial to narrow in and build a track off the location and course.
You have to keep in mind that an increasing portion of their time and labor is going towards moderation and filtering due to a mass influx of nonsensical AI generated papers, non-academic numerology-tier hackery, and other useless drivel.
Spinning the service off forces other the labor out onto other universities rather than leaving them to solely Cornell
Is the problem the storage cost for hosting them, the HDDs? I'm sure they can be offloaded to cold storage because most of that slop won't be opened by anyone.
Arxiv doesn't need moderation. Nobody is asking for Arxiv moderation. It needs minimal checks to remove overtly illegal content.
When you stop moderating input, that's when someone builds a fuse filesystem on top of it. We had those for discord (dsfs), twitterfs, redditfs, yt-media-storage, etc. It's also when someone starts using it to distribute malware, like websites built on a combination of GitHub and a cdn.
We are talking about a different kind of moderation. People want to filter out incorrect information that in their opinion damages the reputation of Arxiv, eg covid stuff. It's not about dumping binary data.
This is a motte and bailey fallacy. The real question is about moderation with the goal of checking truth and the scientific content. Obviously illegal content and ddos type overloading attacks need to be blocked.
Very different philosophies are clashing here. Arxiv came about in an age of different zeitgeist. We may never get back to that moment.
> Is the problem the storage cost for hosting them, the HDDs?
No. Around half the cost is infrastructure. The other half of the cost is people. i.e. engineers to maintain infra and build mod tools for moderators to operate.
> Arxiv doesn't need moderation. Nobody is asking for Arxiv moderation.
This is just not true. Tons of people ask for arxiv to have moderation. Especially since covid, etc when antivaxxers and alternative medicine peddlers started trying to pump the medical categories of arxiv with quack science preprints and then go on to use the arxiv preprint and its DOI to take advantage of non academics who don't really understand what arxiv is other than it looks vaguely like a journal.
And doubly so now that people keep submitting AI generated slop papers to the service trying to flood the different categories so they can pad their resumes or CVs. And on top of that people who don't actually understand the fields they are trying to write papers in using AI to generate "innovative papers" that are completely nonsensical but vaguely parroting the terms of art.
The only reason you don't see more people calling for arxiv moderation is because they already spend so much time on it. If they were to stop moderating the site it would overflow into an absolute nightmare of garbage near overnight. And people wouldn't be upset with the users uploading this of course, they'd be upset with arxiv for failing to take action.
Moderation is inherently unappreciated because in the ideal form it should be effectively invisible (which arxiv's mostly is).
If you want to see the type of stuff that arxiv keeps out, go over to ViXrA [1] or you can watch k-theory's video [2] having fun digging through some of the quality posts that live over on that site.
Because Voyager 2 has different equipment active. It still has the Cosmic Ray Subsystem active.
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