Please help contribute to the Reddit categorization project here

    Purehappiness

    + friends - friends
    9 link karma
    20,560 comment karma
    send message redditor for

    [–] How Shazam Works: audio fingerprinting and indexing Purehappiness 2 points ago in programming

    Didn’t apple purchase them last year? How would that affect their performance 5 years ago?

    Also, why would they need to do that? The mic already is always turned on so they can listen for “Hey Siri”, just like every other major phone.

    [–] How Shazam Works: audio fingerprinting and indexing Purehappiness 1 points ago in programming

    There’s a reason that The DSP industry is difficult to get into without a PHD. While many could certainly learn it, it’s unlikely that the DSP really being used is simply a couple of classes difference.

    [–] 45 years of Swiss nuclear waste Purehappiness 2 points ago in europe

    What makes a fast breeder different than a traditional breeder reactor? My understanding was that traditional breeders already solved most of the waste problem, but aren’t used because of their traditional usage for generating nuclear material for weapons.

    [–] What are some solution to current social unrest in France? Purehappiness 4 points ago in PoliticalDiscussion

    Except the literal evidence he posted suggests this isn’t accurate.

    Theory is fine and all, but must bow to experimental data. There are far more complex relationships in the labor market than simple supply and demand.

    [–] Could Trump use the military to build the wall? Purehappiness 4 points ago in NeutralPolitics

    True, but Congress specifies what their funding is, and what it’s allocated to. Getting them to build something like this would still require congressional approval.

    [–] Could Trump use the military to build the wall? Purehappiness 9 points ago in NeutralPolitics

    It seems incredibly unlikely that Trump snuck 5 Billion into something vaguely defined enough and not already preallocated such that it cannot be pulled out.

    Best case he could do is potentially start some small segment of it and try and use political will to force it to be finished, but that’s a double edged blade, as any delays early on would look really bad.

    [–] Trying to just clear a bit of space when... Purehappiness 22 points ago in softwaregore

    Does it go down to MB if that’s all the space you have remaining? Cause that could explain where the bug came from.

    [–] Comparing TV Live graphics since 1994 Purehappiness 1 points ago in formula1

    It certainly has a lot to do with that, but in order to do the layouts over the dash in real time, you need to do computer vision, and doing so smoothly was a computationally limiting factor for a long time.

    [–] Nuclear war is like bringing a hand grenade to a knife fight, on an elevator. Purehappiness 4 points ago in Showerthoughts

    Interesting, the US policy on the number of nukes needed is enough to survive a first strike, destroy the launcher of that strike, and then survive and destroy a second first strike. This is part of why all dearmarment treaties require both sides to disarm.

    [–] Are there past policies, either in the US or other countries, that have that positively impacted the middle class and could be applied to the US today? Purehappiness 7 points ago in NeutralPolitics

    You clearly don’t understand how taxes work. Do you also think that income tax that jumps from 10% at 50k to 15% at 60k does the same thing? The tax is additive, so for the first 25 million there is no tax, then a 20-60% tax on 25-50, etc.

    [–] Can Russia defeat NATO with Soviet era armour? Purehappiness 2 points ago in CredibleDefense

    Yeah, DARPA is well aware of the weakness of GPS, and the military research companies I'm familiar with are all doing research into different methods of positioning without using GPS. I'm actually interested in a source on bombs using GPS for guidance, as most cruise missiles use TERCOM and dead reckoning for guidance. The biggest question is always accuracy, however, as many alternatives give about 1/10th accuracy (from what I'm aware of) of GPS, which while useful, isn't necessarily enough.

    I wonder how long these "secondary" connections would last in a protracted conflict. Once the major infrastructure targets have been exhausted, surely an adversary would focus on knocking these connections out, as well.

    It's definitely an interesting question, but it also assumes that the enemy would have free ability to attack, which is an open question. Cruise missiles and others are certainly hard to detect, but I do wonder if there are any sources on success rates of these strikes against an equivalent power with knowledge of the location being a target. If only 1/1000 are successes, then with a single redundancy they may never be able to completely prevent communications, especially using radar/cellular as a final backup.

    My overall point is that the MBT will still serve purpose in modern warfare

    Ah, then I've misunderstood you. Certainly they will have a role, if only to act as a deterrent to armored infantry. It's also interesting to look into the success rates of APS, even if they're unlikely to prevent aircraft-based weaponry. Not to mention that using a cruise-missile to take out a tank may simple be monetarily inefficient, and therefore beneficial to keep up a large force of cheap tanks.

    [–] Electromagnetic defence task force : 2018 report Purehappiness 1 points ago in CredibleDefense

    Hasn’t that article been pretty debunked? Not to suggest that these things aren’t possible or attempted, but that specific one seems to be pretty false from my understanding.

    [–] Can Russia defeat NATO with Soviet era armour? Purehappiness 9 points ago in CredibleDefense

    A: GPS and related satellites are not the only method of guidance. There are thousands of LEO satellites, and you can use their Doppler shift from their carrier frequencies in order to perform guidance. Secondly, if such targeting were to occur, it would be Shockley simple to launch a huge number of LEO cube satellites for more direct guidance, numbering such that it would be impractical to attempt to shoot them down.

    Secondly, while current communications may occur over underseas lines, for large data transportation, physical transportation is still the best format, so communications could still easily occur over that, albeit somewhat slower, even if numerous shorter segments connecting, say, Greenland and from there, the EU did not work.

    Thirdly, while some guides systems use satellites, most use laser guidance or advanced targeting systems (ie radar), and therefore are not at all impacted by such targets. Those weapons are alone enough of a presence for MBTs to not gain solitary control of the battlefield. Not to mention that all of those are incredibly easy to shut down via jamming, and therefore would never even be considered for serious usage against a major power.

    [–] Can Russia defeat NATO with Soviet era armour? Purehappiness 7 points ago in CredibleDefense

    So do engines, or at least they did during WW2. The first thing any world power will do if war breaks out is immediately sever internet connections to the outside countries, allowing for increased surveillance of attack attempts, which will heavily limit attempts to target information networks. Secondly, the technology used in guided missiles is surprisingly old, most of the engineering that goes into then is the algorithms and DSP done, with typically older chips being used, as they are the ones that have been hardened for military use.

    While MBTs are not useless, they’ll like become what gun ships have become in the Navy, less armored, and more focused on support operations.

    [–] Saving people from moving vehicles is badass. Purehappiness 7 points ago in HumansAreMetal

    It’s probably more dangerous to be near the front, where you could get swept under.

    [–] TIL Dennis Ritchie who invented the C programming language, co-created the Unix operating system, and is largely regarded as influencing a part of effectively every software system we use on a daily basis died 1 week after Steve Jobs. Due to this, his death was largely overshadowed and ignored. Purehappiness 1 points ago in todayilearned

    I really shouldn’t have said never. While, with any Turing complete language it is theoretically possible to write its own compiler, doing so requires changing an interpreted language into a compiled one, as in order for it to run independent of the C interpreter, you need to compile it into binaries, making it no longer an interpreted language.

    Secondarily, the issue with writing a higher level compiler is that it will never be as efficient as writing a lower level one. And, given that compilers, like OS, are typically built to prefer performance to ease of development, there is rarely ever a benefit to building one that is easier to understand.

    [–] These aliens are actually just baby owls Purehappiness 3 points ago in woahdude

    It’s so interesting all the ways other species have integrated themselves into the human ecosystem.

    [–] What am I doing Wrong - Recruiter here. Purehappiness 3 points ago in AskEngineers

    There was a post from a recruiter on a reddit thread a couple days ago that I think is relevant to this. I'll try and summarize it because I don't feel like finding it.

    Basically, the recruiter said that when they're asked to fill a position, they always have a 5-10 minute chat with the manager. They ask why the position is empty, what the day to day would look like, what are the responsibilities, and what level of experience is really required (i.e. can they be trained? Or do they already need to know all of it).

    If you use that info in your cold calls, you might have more success.