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Calvin McPhail-Snyder
2.4K posts

Calvin McPhail-Snyder
@esselltwo
Mathematician working at Duke. I study hyperbolic geometry and topological quantum field theories. he/him/his
Durham, NC Katılım Ağustos 2020
202 Takip Edilen509 Takipçiler

@littmath @postdocforever He’s a noted transphobic “journalist” who also talks a lot about how MeToo went too far.
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@postdocforever No worries, I don’t really know anything about him.
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The idea that thousands of chuds checked the literature for rigorous scrutiny of Louks’s thesis before calling her slurs is quite funny, in a way. Can’t imagine feeling the need to carry water for this sort of thing.
Wesley Yang@wesyang
I don't approve of lobbing slurs at academics I do approve of rigorously scrutinizing bad academic work and ensuring it has no place in academia The former happens because the latter doesn't
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@catdadpotat @focusfronting I once saw a really cool art piece in the Tate Modern about this! It was a video of a conductor shot so you could only see his hands, on a huge screen in a dark enclosed room. It was super disorienting and neat, but maybe too much for being jet lagged so we only lasted 30 seconds
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@ainesanapulla @no_earthquake How you can you not get excited about coaches saying things like “Trips Right Yo-Yo 60 Y Stick”?
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@no_earthquake Entire sport around logistical difficulties and planning, my appreciation has grown.
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@colinb8 @kareem_carr He’s saying what I did (the first derivative of the red curves doesn’t converge to the green curve) in more informal language
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@esselltwo @kareem_carr Good points.
What's puzzling me is Kareem Carr's statement that they're not the same curve.
Of course the individual curves are not the same as the limit curve, but I don't understand the underlying point KC wants to make.
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Not the same curve.
At the corners of the red squares, you’re turning exactly 90° which is pretty sharp. As the red squares shrink, you end up explosively turning more and more times a second to keep a steady pace.
That’s nothing like just cruising along the green diagonal.
MatLab crashes@memecrashes
What 🤯
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@colinb8 @kareem_carr Here the convergence is uniform but the first derivative doesn’t converge even pointwise. Since arclength depends on the derivative it’s not surprising the red and green curves have different lengths
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@kareem_carr I suspect you know more about maths than I do (my degree in it was years ago), but this seems to be the diagram from
en.wikipedia.org/wiki/Staircase…
showing that pointwise convergence (uniform convergence here?) might not behave nicely.
I don't understand the point you are making?
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@elfstrogenic @lastpositivist It’s kind of funny that he recruited a bunch of people to his intellectual movement/cult by writing Harry Potter fanfic
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Oh word there's actually an explanation for why he blocked me. Ok fair it's an annoying paper but I will say if you read it the clear villains are PoC intelligentsia, which I explicitly name myself within. I kinda thought that as a society we agreed self directed racism is fine?
Greener Pastures@Violet_Bismuth
@lastpositivist Probably this lol 👀
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Calvin McPhail-Snyder retweetledi

@TaliaRinger But seriously, good luck and it DOES get better
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@TaliaRinger I’m amazed she’s sleeping regularly enough you have a schedule!
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@TimHenke9 @Daanniii6 I agree with everything you said! Plus I’m not really an expert on the general physics ideas.
I would emphasize that TQFTs are quite special: they are good to study but a general QFT (like QED, say) is more complicated
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@esselltwo @Daanniii6 I hope I didn't say anything embarrassingly wrong haha
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@Daanniii6 @TimHenke9 That is just one example but it’s on of the major motivations. You can also express lots of Floer-type things in this language, but it’s much harder or maybe not computable (I know less about this)
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@Daanniii6 @TimHenke9 For quantum Chern-Simons theory these things are all explicitly computable, although you might get some very complicated sum/matrix/tensor/higher linear morphism and you might need to know a fair amount of representation theory to do the calculations
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@GabiElectra @VitruviusGrind yea that’s a v good call actually
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@shittyprogram @focusfronting @rohn_jawls I was a little confused why they switched from being the racist kind of postrat to being the singularity kind
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@focusfronting @rohn_jawls iirc this account is now 3 people posting whatever they want, too. so her credentials don’t really apply very clearly to a lot of what’s posted
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@TimHenke9 @bwebste It’s the location of the Springfield the Simpsons live in
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@bwebste well I presume it's an area involving 3 states. I just don't know which specific 3 states they are or indeed if it's maybe just a phrase you can use for any 3 states or sth
What's most amusing to me is kids' shows never bother to translate it, but in Dutch it makes no sense haha
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@AniJhahaha @christapeterso Infamously the Nazis said they had created a “Volksgemeinschaft” which you could translate as “people’s community” but they meant more like “racially [pure] society”
en.m.wikipedia.org/wiki/Volksgeme…
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@AniJhahaha @christapeterso “Volk” is hard to translate: it can mean “people” but also “race” or “ethnicity” or “nation”
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@APotAaaYM @ryanyang0 Obviously studying math intensively from a young age will help make you good at doing mathematical research, but that doesn’t mean being really good at the contests is what’s making people Fields Medalists
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@APotAaaYM @ryanyang0 Being a Fields Medalist and being good at research are not the same thing!
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