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David J. Webb, Ph.D.
2.6K posts
David J. Webb, Ph.D.
@DJWebbMath
Logician, musician, special edition. I run upper division math at Chaminade University, and study computability theory/LEAN when I can. Opinions my own. He/him.
Honolulu, HI Entrou em Haziran 2021
30 Seguindo220 Seguidores
@JDHamkins In fairness, there were a lot of mean arguments flying around in Cantor’s time
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Quiz in my Infinity class.
Give a self-contained argument that the set of real numbers is uncountable. Be sure to state exactly what this means, and probably it would be good to mention the name of the kind argument you are providing.
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@fredyfredo123 @JDHamkins Presumably not to an undergrad taking a course on infinity, which is the whole point
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@martysa_137 @DevinHS13 No Gallifreyan return was going to live up to the hype, but it was pretty clearly always where the show was going since 2005 (explicitly since 2013). May as well subvert expectations ¯\_(ツ)_/¯
Character assassination? “The Doctor goes too far” is not remotely out of character
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@DJWebbMath @DevinHS13 In DIH Missy's plan makes absolutely 0 sense whatsoever & contradicts so much of the episode that the whole thing is just a complete mess.
HB is an hour of character assassinations & a butchered attempt at "arcs" and wastes the return of a planet that should've just stayed dead.
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@martysa_137 @DevinHS13 Did we watch the same episode? “Moffat bait and switches a Gallifreyan epic into a character piece about the Doctor and Clara, stuffed full of cracked fun house reflections that never do anything so crass as to resolve” is one of the show’s finest moments
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@DJWebbMath @DevinHS13 This finale is rlly bad. And Hell Bent is awful.
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@martysa_137 @DevinHS13 Every episode Talalay directed is peak though?
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David J. Webb, Ph.D. retweetou
P1. If my post contained a logical fallacy, then I'd be very upset.
P2. I am very upset.
C. Therefore, my post contains a logical fallacy.
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@KamerynJW The inscribed book skeeved me out so bad.
You can inscribe a book to student when they graduate, and the inscription had better be milquetoast as fuck.
Biss failed this on both counts!
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David J. Webb, Ph.D. retweetou
This is true, but knowing who we are, or the meaning of life, isn’t a substitute for working through the exercises in Hartshorne.
Vatican News@VaticanNews
Pope Leo XIV, who taught mathematics and physics, sends a message on the occasion of the International Day of Mathematics, reiterating that having a great deal of knowledge is not enough if we do not know who we are or what the meaning of life is. vaticannews.va/en/pope/news/2…
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David J. Webb, Ph.D. retweetou
To quote the sometimes great Nassim Taleb - “is it a 10 sigma event or are you wrong about the world
Unless the information came from God, you can reject the Gaussian distribution”
Micah Adams@MAdamsStatGuy
Bam Adebayo broke math. His 83-point game was 8.5 standard deviations above his career average (or ~1 in 53 quadrillion) Based on career avgs, its like: Patrick Mahomes passing for 915 yards Justin Verlander throwing 214 pitches in a start Wilt Chamberlain grabbing 79 rebounds
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@Padillac_16 @DiscipleOfBrad Agreed!
(Not a counterpoint, as they weren’t better)
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@OomfOfAnOomf @Jankfessor_YGO While it’s a good setup for the joke, the first part just isn’t true.
Also my knowledge of this comes from being a mathematician, not a YuGiOh player, so I’m gonna need more context on that punchline 😅
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@DJWebbMath @Jankfessor_YGO both games have been proven to be able to simulate a turing machine, but only yugioh has been proven to be able to force your opponent to reenact 911 in within its card game
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@TwstdPrtzl13 Once a season forever until he dies, hopefully
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@_TheSmartAlec1 Hbomberguy’s Doctor Who takes are consistent abysmal, which is incredible given the care he puts into other work
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Hbomberguy is now and forever the GOAT but he will actually pay one day for that section of his Sherlock video where he said Moffat Doctor Who sucked because it made the Doctor “Too important” as if RTD1 never did that at all when it absolutely fucking did lmao
Gunner Dobbins (Dunk and Egg era)@GunnerDobbins
@_TheSmartAlec1 “Doctor, I let you go.”
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@somedumbdrummer @GunnerDobbins That’s what I keep saying!
Plus it let him - the unofficial face of the show - literally handoff the TARDIS to his successor. Letting one Doctor react with awe to the next was a great way to build goodwill for the incoming incarnation.
Shame Davies squandered it (Space Babies).
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@GunnerDobbins There was no other option for the 60th, why do people keep forgetting that
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Look, David Tennant is my Doctor, I love him, it was a FATAL mistake to bring him back in any capacity and I think Who might not be able to recover
IGN@IGN
An official teaser on the Doctor Who website has sparked fan speculation that the series' upcoming climactic Christmas special will be a sequel to Doomsday, one of the series' most beloved episodes. bit.ly/46RpVSV
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@shiropen2 Unfortunately this paper’s claim is far stronger than what it actually proves.
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遊戯王に必勝法はある？ “あっても分からない”と数学的に証明と報告。「Π¹₁完全」で暫定MTG超えの複雑さ levtech.jp/media/article/… ある戦略が絶対勝てるかはどんなコンピュータでも判定できないと証明。八汰烏などを用い遊戯王上にチューリングマシンを再現し検証→現時点で遊戯王が一番複雑なゲーム
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@Jankfessor_YGO It certainly does not surpass Magic the Gathering, where an arbitrary computer program can be encoded into the game state, rather than outsourced to the strategy used to play the game!
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@Jankfessor_YGO Sorry, no, this paper does not prove nearly so strong a claim.
They show that an arbitrary natural number can be encoded into YuGiOh, which is impressive for YuGiOh but kind of a nothingburger mathematically.
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@OrganizerMemes Perhaps the longer video gets into it, but it’s not immediately clear how the frame shift from multiple revolutions to an ongoing one helps us make sense of the times we live in.
Fascinating history, though!
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David J. Webb, Ph.D. retweetou
@mattyglesias "How much tax do I owe"? "Oh thats easy its just 'int_0^salary{f(x)}dx'
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