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alicemazzy's profile
Alice Maz
Alice Maz
Alice Maz
@alicemazzy

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Alice Maz

@alicemazzy

true neutral

Austin, TX
alicemaz.com
Joined August 2009

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    1. Alice Maz‏ @alicemazzy Mar 16

      Alice Maz Retweeted Keith Coleman  🌱 😀 🙌

      soonhttps://twitter.com/kcoleman/status/974495158841499648 …

      Alice Maz added,

      Keith Coleman  🌱 😀 🙌 @kcoleman
      OH (from an awesome Lyft driver): “Today has been great. I’ve been blessed by the algorithm.” Immediately had an eerie feeling that this could become an increasingly common way to describe a day.
      5 replies 15 retweets 55 likes
      Show this thread
    2. Alice Maz‏ @alicemazzy Mar 16

      it's commonly accepted that non-programmers don't understand programmed systems so they ascribe agency and mystery to them but the truth is neither do most programmers

      5 replies 6 retweets 59 likes
      Show this thread
    3.  🤖 Sonya Mann  🎀‏Verified account @sonyaellenmann Mar 16
      Replying to @alicemazzy

      natural result of system complexity and layered-ness, or natural result of standards for programmers not being particularly high?

      2 replies 0 retweets 0 likes
    4.  🤖 Sonya Mann  🎀‏Verified account @sonyaellenmann Mar 16
      Replying to @sonyaellenmann @alicemazzy

      (I guess people who can do any amount of coding are going to be smarter in aggregate than people who can't, but you know what I mean)

      1 reply 0 retweets 1 like
      Alice Maz‏ @alicemazzy Mar 16
      Replying to @sonyaellenmann

      bit of both, balance determined by context

      4:10 PM - 16 Mar 2018
      1 reply 0 retweets 0 likes
        1. New conversation
        2. Alice Maz‏ @alicemazzy Mar 16
          Replying to @alicemazzy @sonyaellenmann

          there's a process I like to call the rails problem

          1 reply 4 retweets 13 likes
        3. Alice Maz‏ @alicemazzy Mar 16
          Replying to @alicemazzy @sonyaellenmann

          domain experts tired of doing busywork they understand well enough create an abstraction to get rid of it

          1 reply 0 retweets 3 likes
        4. Alice Maz‏ @alicemazzy Mar 16
          Replying to @alicemazzy @sonyaellenmann

          this makes them vastly more productive but their understanding is not diminished because they know what they are abstracting over

          1 reply 0 retweets 6 likes
        5. Alice Maz‏ @alicemazzy Mar 16
          Replying to @alicemazzy @sonyaellenmann

          eventually though the abstraction gets pleasant and usable enough that new people start showing up and only ever learning the abstraction

          1 reply 0 retweets 10 likes
        6. Alice Maz‏ @alicemazzy Mar 16
          Replying to @alicemazzy @sonyaellenmann

          and this works well enough almost all the time but then one day they run into a problem caused by something underneath the abstraction and are totally fucked

          2 replies 1 retweet 10 likes
        7. Alice Maz‏ @alicemazzy Mar 16
          Replying to @alicemazzy @sonyaellenmann

          there was an amusingly common pattern with activerecord (rails db interaction thing) misuse I saw twice when freelancing and is apparently pervasive among rockstar ninja types

          1 reply 0 retweets 6 likes
        8. Alice Maz‏ @alicemazzy Mar 16
          Replying to @alicemazzy @sonyaellenmann

          where because they didn't know sql and only ever used activerecord they manage to accidentally make simple, fast queries incredibly slow

          2 replies 0 retweets 3 likes
        9. Alice Maz‏ @alicemazzy Mar 16
          Replying to @alicemazzy @sonyaellenmann

          eg `select * from table where column = 'whatever'`, with an index (thing that organizes values, usually in a tree, for faster lookups) this is probably O(log n)

          1 reply 0 retweets 2 likes
        10. Alice Maz‏ @alicemazzy Mar 16
          Replying to @alicemazzy @sonyaellenmann

          meaning, for a table of n rows you have to touch log n of those rows at worst to find your things, because the way a tree is organized you automatically exclude half of things from consideration each step

          1 reply 0 retweets 4 likes
        11. Alice Maz‏ @alicemazzy Mar 16
          Replying to @alicemazzy @sonyaellenmann

          what they'd manage to do is turn it into an O(n^2) operation: pull out *all the rows*, check the *one row* you're interested in, repeat both steps for *every* row

          3 replies 0 retweets 5 likes
        12. Alice Maz‏ @alicemazzy Mar 16
          Replying to @alicemazzy @sonyaellenmann

          so it works fine with a small enough dataset and then the moment it goes live (if your prod dataset is huge) or years later (when it gets huge) it takes fucking forever

          1 reply 0 retweets 4 likes
        13. Alice Maz‏ @alicemazzy Mar 16
          Replying to @alicemazzy @sonyaellenmann

          (my former freelance partner got pulled in by an old job once as a contractor at way more than his previous to solve literally this exact problem, which none of their employees could do)

          1 reply 0 retweets 3 likes
        14. Alice Maz‏ @alicemazzy Mar 16
          Replying to @alicemazzy @sonyaellenmann

          I call it the rails problem because I love this example and think it's hilarious but it's basically the history of programming languages

          2 replies 0 retweets 4 likes
        15. Alice Maz‏ @alicemazzy Mar 16
          Replying to @alicemazzy @sonyaellenmann

          people used to working in hex saw assembly languages as an extravagance that would sissify the next generation of programmers, people working in assembly said same of compiled langs, etc

          1 reply 0 retweets 4 likes
        16. Alice Maz‏ @alicemazzy Mar 16
          Replying to @alicemazzy @sonyaellenmann

          personally I think anyone who doesn't know at least one level down from where they're working is reckless bordering on dangerous

          4 replies 2 retweets 9 likes
        17. Alice Maz‏ @alicemazzy Mar 16
          Replying to @alicemazzy @sonyaellenmann

          webdevs should know enough C/C++ to have intuitions about how their languages are likely implemented and be able to read the implementations if needed, C devs should know their archs' assemblies, etc

          2 replies 0 retweets 1 like
        18. Alice Maz‏ @alicemazzy Mar 16
          Replying to @alicemazzy @sonyaellenmann

          this is perfectly reasonable to demand of ppl imo, expecting everyone to know "everything" under them (chip fab? EE?) probably isn't

          3 replies 0 retweets 2 likes
        19. Alice Maz‏ @alicemazzy Mar 16
          Replying to @alicemazzy @sonyaellenmann

          but anyway the real issue is once more "programming" shifts from writing compiled/interpreted languages to offloading more work to machine learning frameworks they have zero understanding of the math behind

          1 reply 0 retweets 3 likes
        20. Alice Maz‏ @alicemazzy Mar 16
          Replying to @alicemazzy @sonyaellenmann

          where they have some inputs and some desired outputs and as far as they know everything that happens in between is a magic black box because hackernews told them they don't need to know linear algebra

          2 replies 0 retweets 6 likes
        21. Alice Maz‏ @alicemazzy Mar 16
          Replying to @alicemazzy @sonyaellenmann

          and these people are easily >90% of the field lol

          1 reply 1 retweet 4 likes
        22. Alice Maz‏ @alicemazzy Mar 16
          Replying to @alicemazzy @sonyaellenmann

          sorry for writing a blog post lol anyway the paradox is standards are both higher than most people can achieve and much lower than they should be because most people in the industry are worse than useless

          2 replies 0 retweets 6 likes
        23. 3 more replies

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