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arthur_affect's profile
Arthur Chu
Arthur Chu
Arthur Chu
Verified account
@arthur_affect

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Arthur ChuVerified account

@arthur_affect

Mad genius, comedian, actor, and freelance voiceover artist broadcasting from the distant shores of Lake Erie (he/him)

Broadview Heights, Ohio
arthur-chu.com
Joined August 2009

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    1. Arthur Chu‏Verified account @arthur_affect 7 Aug 2020

      All summations of infinite series are based on making up new rules and saying "Okay let's pretend you can do this, what happens if you do, what new stuff do you discover if we just fuck around and act like this makes sense"

      1 reply 0 retweets 19 likes
      Show this thread
    2. Arthur Chu‏Verified account @arthur_affect 7 Aug 2020

      So like, let's be clear This classic series: 1+1/2+1/4+1/8+1/16... Is, from a pure old-school POV, just as bad as the other one Even though this one looks like it has an answer (it adds up to 2 in the end)

      5 replies 0 retweets 21 likes
      Show this thread
    3. Gingersnap  💛 🐝‏ @TheCheekyGinger 7 Aug 2020
      Replying to @arthur_affect

      Gah! I hate this math. How do you ever get to 2? Because there's no fraction so small that half of it is zero. Are we saying there's some denominator so large that if it were x then 1/x = 0? Because that's the only way I can see this = 2. I am not suited to math like this. 😠

      1 reply 0 retweets 0 likes
    4. Arthur Chu‏Verified account @arthur_affect 7 Aug 2020
      Replying to @TheCheekyGinger

      Well, for many years we were trying to avoid saying that, and just define the idea of a "limit" without saying actual "infinite" and "infinitesimal" numbers exist But now there's non-standard analysis which says that those are okay

      1 reply 0 retweets 1 like
    5. Arthur Chu‏Verified account @arthur_affect 7 Aug 2020
      Replying to @arthur_affect @TheCheekyGinger

      But yeah ignoring that noise, the idea of the delta-epsilon definition of a limit is you don't ever need to "finish" the series (you can't, it takes infinitely long)

      1 reply 0 retweets 1 like
    6. Arthur Chu‏Verified account @arthur_affect 7 Aug 2020
      Replying to @arthur_affect @TheCheekyGinger

      You just need to ask the question "Every time I go one step further, is there a specific number I am getting closer to" And in this case yes, you can see that it's 2, so the answer to the question is 2

      2 replies 0 retweets 1 like
    7. Gingersnap  💛 🐝‏ @TheCheekyGinger 7 Aug 2020
      Replying to @arthur_affect

      I see that. But it feels wrong to say since it won't ever go over 2 it must *be* 2. Math isn't supposed to be horseshoes and hand grenades! This seems like saying "well ... close enough." Might as well give it a tolerance and call it machining.😩

      3 replies 0 retweets 0 likes
    8. Arthur Chu‏Verified account @arthur_affect 7 Aug 2020
      Replying to @TheCheekyGinger

      Zeno of Elia would say if you can't accept this idea then if you think about it you can't map the real world onto numbers at all

      2 replies 0 retweets 1 like
    9. Arthur Chu‏Verified account @arthur_affect 7 Aug 2020
      Replying to @arthur_affect @TheCheekyGinger

      All of his paradoxes, when you strip them down, were just making this point - NOTHING in the real world is "exact", it CAN'T be

      1 reply 0 retweets 1 like
    10. Gingersnap  💛 🐝‏ @TheCheekyGinger 7 Aug 2020
      Replying to @arthur_affect

      I knew it

      1 reply 0 retweets 0 likes
      Arthur Chu‏Verified account @arthur_affect 7 Aug 2020
      Replying to @TheCheekyGinger

      Yeah it's like Zeno's Paradox with the 1+1/2+1/4 stuff is just this complicated, mathy way of saying "How do you measure something like exactly one cup of water in real life You fill it up until it gets to the line and you stop? *Exactly when* do you stop"

      7:36 AM - 7 Aug 2020
      • 2 Likes
      • Hoydenne Gingersnap 💛🐝
      1 reply 0 retweets 2 likes
        1. New conversation
        2. Arthur Chu‏Verified account @arthur_affect 7 Aug 2020
          Replying to @arthur_affect @TheCheekyGinger

          "How do you measure anything in terms of numbers, how do you go exactly to the line and not over All you can do is get closer and closer and closer but when are you actually at the line"

          1 reply 0 retweets 1 like
        3. Gingersnap  💛 🐝‏ @TheCheekyGinger 7 Aug 2020
          Replying to @arthur_affect

          Well. In real life, it's mostly all just horseshoes and hand grenades. Because most things we think we're counting we're actually measuring. Fine, fine, it makes sense. 😂😂😂

          0 replies 0 retweets 1 like
        4. End of conversation

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