Daniel R. Grayson Profile
Daniel R. Grayson

@DanGrayson

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Followers
4,803
Following
56
Media
5,593
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A mathematician and retired mathematics professor interested in algebraic K-theory and Voevodsky's univalent foundations who also writes mathematical software.

Henderson NV; Ocean Grove NJ
Joined April 2009
Don't wanna be here? Send us removal request.
Pinned Tweet
@DanGrayson
Daniel R. Grayson
5 months
I'm heart-broken and weeping. My wife, Carol, whom I've been with for 51 years, died today. It was sudden and we had no warning.
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@DanGrayson
Daniel R. Grayson
8 months
@JamesEsses @sarforalltosee @JohnLewisRetail I would never wear a pronoun badge, because I don't want to participate in propagating the lie that humans can change their sex by declaration.
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@DanGrayson
Daniel R. Grayson
1 year
@Reuters Re: "her hopes were dashed" His hopes were dashed, as he had hoped to be able to win by cheating.
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@DanGrayson
Daniel R. Grayson
5 months
@Cici357123 I want to inform my friends.
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@DanGrayson
Daniel R. Grayson
4 years
@IdollyDancing @StoatlyL @Pennychops1 @Momma2abunch @NoWearMan714 @tugbugglas @StephenKing ... suppose they had no advantage. Then those males would take 50% of the women's medals in every sport. In toto, men would get 75% of the medals and women would get only 25%. That's not fair to women. ...
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@DanGrayson
Daniel R. Grayson
4 years
@IdollyDancing @StoatlyL @Pennychops1 @Momma2abunch @NoWearMan714 @tugbugglas @StephenKing Ross Tucker's concern is whether male-to-female transgender people have an performance advantage over females. But it's irrelevant. ...
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@DanGrayson
Daniel R. Grayson
4 years
@IdollyDancing @StoatlyL @Pennychops1 @Momma2abunch @NoWearMan714 @tugbugglas @StephenKing Suppose they were weakened even further (with more debilitating drugs) so the males won only 2% of the women's medals. Then overall, men would get 51% of the medals and women would get 49%. That's not fair to women either. ...
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@DanGrayson
Daniel R. Grayson
4 years
@IdollyDancing @StoatlyL @Pennychops1 @Momma2abunch @NoWearMan714 @tugbugglas @StephenKing The only fair way is to keep them out of women's sport entirely. Performance comparisons are irrelevant.
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@DanGrayson
Daniel R. Grayson
2 years
@sharrond62 @CrunchAlias Even if there were a way to reduce male advantage to zero, it would still be unfair to let them race in women's events, because they're men, not women.
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@DanGrayson
Daniel R. Grayson
4 years
Tweet media one
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@DanGrayson
Daniel R. Grayson
1 year
@TaylorAdvocate All trans women are fake. They're pretending to be women.
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@DanGrayson
Daniel R. Grayson
1 year
@EmmaTurner12 @YouTube Good for those women!
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@DanGrayson
Daniel R. Grayson
3 years
@SwimmingWorld @Hogshead3Au @iChampionWomen @Martina @ChrissieEvert @devarona64 @Scienceofsport @coachblade Re: "Lia Thomas deserves a solution ... an answer must be found." Easily done: let him join the men's team.
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@DanGrayson
Daniel R. Grayson
2 years
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@DanGrayson
Daniel R. Grayson
3 years
@SwimmingWorld @Hogshead3Au @Martina @runthinkwrite @coachblade @Scienceofsport Re: "something needs to be done to give Thomas some type of racing platform" Let him try out for the men's team.
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@DanGrayson
Daniel R. Grayson
2 years
@RebelNews_CA It's disappointing that their definition of "fairness" still seems to be that the contestants are evenly matched. A better definition of "fairness" would be that no men are in the races that are for women only.
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@DanGrayson
Daniel R. Grayson
2 years
@OkBiology @MailOnline Re: "Biological women have criticized the company for using a trans person to speak about their experience of 'womanhood'" No, it's for using a man.
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@DanGrayson
Daniel R. Grayson
4 years
@guardian_sport @seaningle "12% advantage" -- why all the focus on whether the men still have an advantage over the women? Suppose they didn't -- then they'd still take medals away from women 50% of the time, and that would be unfair to the women.
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@DanGrayson
Daniel R. Grayson
3 years
@runthinkwrite @IvyLeague Even if Thomas were in the middle of the pack, it would be evidence of Ivy League corruption, as he is a man in an event for women only, stealing a spot from a woman.
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@DanGrayson
Daniel R. Grayson
2 years
@rottengirl No child should be labeled "trans" by adults.
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@DanGrayson
Daniel R. Grayson
3 years
@TODAYshow @stephgosk Re: "some say she is swimming with unfair advantages" Whether he has advantages is irrelevant. Whether those advantages are "unfair" is irrelevant. What's relevant is that a man is swimming in events that are for women only.
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@DanGrayson
Daniel R. Grayson
3 years
@KDansky @washingtonpost Re: "But some researchers say Thomas’s times show one year of treatment isn’t necessarily enough to level the playing field". "Leveling the playing field" is irrelevant. He's a man, competing in an event for women. That, in itself, is unfair, regardless of outcomes.
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@DanGrayson
Daniel R. Grayson
2 years
@theneonrequiem I'm thinking of making a sign with this on it: Protect "trans" kids ... from permanent surgical mutilation and debilitating medication. Stop calling them "trans"!
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@DanGrayson
Daniel R. Grayson
4 years
@JoEdge___ @DreyfusJames @oldspeaker1 For a long time I resisted deleting the tweet, as demanded by twitter.
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@DanGrayson
Daniel R. Grayson
3 years
@SwimmingWorld @Hogshead3Au @Martina @coachblade @runthinkwrite Re: "Transgender women should be allowed to compete in women’s athletics, so long as these individuals can show that they’ve mitigated the athletic advantages that come with male puberty." No, they're men, and women's athletics are for women only. Mitigation is pointless.
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@DanGrayson
Daniel R. Grayson
2 years
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@DanGrayson
Daniel R. Grayson
3 years
@salltweets @HumanGayMale Re: "Many scientists have criticised these guidelines, saying they do little to mitigate the biological advantages of those who have gone through puberty as males..." As though that were even relevant. What's relevant is that men are not women.
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@DanGrayson
Daniel R. Grayson
4 years
@MForstater @CareQualityComm "There's nothing in the act that says we need to use a specific word for a protected characteristic." This is double talk. Legislation is written using specific words with clear definitions so the meaning is clear. Government bodies should use the same words for clarity.
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@DanGrayson
Daniel R. Grayson
1 year
@MForstater Ask Starmer what "female" means.
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@DanGrayson
Daniel R. Grayson
3 years
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@DanGrayson
Daniel R. Grayson
3 years
@projhumanities I don't see the relevance of discussing whether they have an advantage -- they are men entering an event designated for women only, and that ought to be the deciding point.
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@DanGrayson
Daniel R. Grayson
2 years
@ClayTravis He hasn't ever been a woman.
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@DanGrayson
Daniel R. Grayson
1 year
@TalkTV Because they're not women, they're men.
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@DanGrayson
Daniel R. Grayson
2 years
@duchess_elle Please do not access MAID - you're more valuable to the world and everyone in it alive.
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@DanGrayson
Daniel R. Grayson
3 years
@rdhinds @phillutton Nuance is required? Complex debate? I don't think so. Just keep men out of women's sporting events. No nuance or complexity there, and a perfect solution.
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@DanGrayson
Daniel R. Grayson
2 years
@sharrond62 @Kezfromchadders @FondOfBeetles @GaryLineker Even if male advantage could be removed, it would still be unfair to women to let men compete in their events. The events are for women only, and every male competitor means one fewer female competitor. Every medal going to a male should have gone to a female.
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@DanGrayson
Daniel R. Grayson
2 years
@BillboardChris @CommonPerson50 What's wrong with the Montreal police?? You've got video. They could investigate.
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@DanGrayson
Daniel R. Grayson
1 year
@WeAreFairCop @RoyalNavy I would never specify which pronouns should be used for me, because I don't want to participate in propagating the lie that humans can change their sex.
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@DanGrayson
Daniel R. Grayson
2 years
@lauramarspar Children should never be called trans.
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@DanGrayson
Daniel R. Grayson
4 years
@Muttmere1 Yes: the responsibility for providing sources establishing safety and effectiveness of medication belongs to those proposing medication for a condition, not to those hesitating to medicate.
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@DanGrayson
Daniel R. Grayson
3 years
@Martina Whether he retains an advantage over the women is irrelevant - he's a man in an event for women only. Even if he were to steal just some of the women's medals, it would still be unfair.
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@DanGrayson
Daniel R. Grayson
2 years
@TheOnlyGuru I wish twitter had a feature, which would let me block all videos with Dylan or Jeffrey in them.
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@DanGrayson
Daniel R. Grayson
1 year
@thetimes It's irrelevant whether they have an advantage. They're men in an event for women only.
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@DanGrayson
Daniel R. Grayson
2 years
@SwimmingWorld @Hogshead3Au @Martina @coachblade @runthinkwrite @iChampionWomen @Scienceofsport @sharrond62 @FondOfBeetles Re: "Transgender women should be allowed to compete in women’s athletics, so long as these individuals can show that they’ve mitigated the athletic advantages that come with male puberty." No, men shouldn't ever compete against women, because they aren't women.
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@DanGrayson
Daniel R. Grayson
2 years
@WomenAreWomen3 Re: "Lia Thomas shrugs off doctors who confirm she DOES have unfair physical advantage" Irrelevant. He's a man in events that are for women only.
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@DanGrayson
Daniel R. Grayson
4 years
@EmmelineWyndham mensuration: the measuring of geometric magnitudes, lengths, areas, and volumes.
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@DanGrayson
Daniel R. Grayson
3 years
@HameedMohdShah @abuhilalah @khanfarw I pray that tomorrow the brave women are still alive.
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@DanGrayson
Daniel R. Grayson
1 year
@IanDunt Discrimination by sex is not hatred.
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@DanGrayson
Daniel R. Grayson
3 years
@BluskyeAllison @Truth_It_Is_ @DreyfusJames @MMMMMMeow @jk_rowling I am of the opinion that adding "I am of the opinion that" to a statement is redundant and doesn't change the meaning of it.
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@DanGrayson
Daniel R. Grayson
3 years
@H35119368 @ImWatson91 @Colmogorman @blablafishcakes Yep -- no males at all should be housed with vulnerable women prisoners.
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@DanGrayson
Daniel R. Grayson
3 years
@Martina Re: "To be clear, trans women are women. Full stop." Not true at all. They're men.
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@DanGrayson
Daniel R. Grayson
3 years
@GwentPCC And you have extra time to arrest a woman for posting feminist stickers in public places? You must have too many police officers chasing too few crimes. Time for a reduction in force.
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@DanGrayson
Daniel R. Grayson
3 years
@CydZeigler Re: "When NCAA policy was written in 2011, it was based on the best-available information." Hmm?? Didn't we already know in 2011 that men are men and women are women?
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@DanGrayson
Daniel R. Grayson
3 years
@WomenReadWomen Aaargh, what's wrong with these people?
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@DanGrayson
Daniel R. Grayson
5 months
@Mamachula619 Thank you!!
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@DanGrayson
Daniel R. Grayson
3 years
@BrowngaGreg @GCBeeGee @SaveWomensSport @JimBUWDawg @coachblade @runthinkwrite Shame on USA Swimming: they should just keep men out of women's swimming events entirely, instead of settling for more "mitigation".
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@DanGrayson
Daniel R. Grayson
3 years
@PosyPeavy @Mom2004hms I'm decades late -- for me, gender is a concept from the grammar of human languages.
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@DanGrayson
Daniel R. Grayson
3 years
@SaveWomensSport Re: "The very simple answer is that I’m not a man." Yes, it's a simple answer. And it's false.
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@DanGrayson
Daniel R. Grayson
2 years
@duchess_elle Please don't do it. You are valued and valuable.
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@DanGrayson
Daniel R. Grayson
3 years
@TLexercise It's irrelevant: even if there were no advantage, it would still be unfair, because they're men competing in an event for women only, taking medals and opportunities away from women.
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@DanGrayson
Daniel R. Grayson
4 years
@CrazyCancerLady And I've been called to task recently for referring to our extended family as our "clan", because Klan.
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@DanGrayson
Daniel R. Grayson
3 years
@SaveWomensSport @missy1111114 Re: "Their reasoning is that multiple studies have shown in recent years that transgender women athletes who went through a typical male puberty during adolescence still hold a competitive edge". Simpler reasoning: they aren't women.
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@DanGrayson
Daniel R. Grayson
2 years
@WomenReadWomen She's so evil!
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@DanGrayson
Daniel R. Grayson
2 years
@skdh Sabine, as you point out, having an advantage is not unfair. Indeed, those with the most advantage are called "winners". What's unfair about men in women's sport is that they are men in events designated as being for women only.
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@DanGrayson
Daniel R. Grayson
3 years
@pullbuoy Thank you for sticking your head above the parapet. Re: "Can the innate male advantage be mitigated?" Why would we want to think about mitigating the advantage? Let's just keep all men out of all events that are for women only.
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@DanGrayson
Daniel R. Grayson
2 years
@HaydenHewitt Why struggle with the idea? Reject it outright.
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@DanGrayson
Daniel R. Grayson
3 years
@SwimmingWorld @Hogshead3Au @Martina Re: "Trans women should compete with biological women, so long as they can demonstrate that they have lost their sex-linked, male-puberty advantage prior to competition in the women’s category." No, men should not compete with women. The events are for women only.
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@DanGrayson
Daniel R. Grayson
2 years
@JebraFaushay Who's paying that guy to perform like that???
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@DanGrayson
Daniel R. Grayson
1 year
@cathydevine56 That's not the problem. It's irrelevant whether these men have a performance advantage. They're men and should not be competing against women in an event that is for women only.
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@DanGrayson
Daniel R. Grayson
3 years
@eva_kurilova Whatever Lia wants, Lia gets.
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@DanGrayson
Daniel R. Grayson
3 years
@fionayamamoto @CydZeigler Because she's a woman.
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@DanGrayson
Daniel R. Grayson
4 years
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@DanGrayson
Daniel R. Grayson
3 years
@ZeldaTheChicken Having a "conversation" is probably her way to avoid doing anything about it. Presumably you have made your entire case in writing already anyway.
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@DanGrayson
Daniel R. Grayson
3 years
@FondOfBeetles Why pay any attention to Bridges' strength? Men shouldn't compete in events that are for women only.
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@DanGrayson
Daniel R. Grayson
2 years
@GeorgeWOxford re: "she ... looks toward heaven in ecstasy". It doesn't look like ecstasy to me. It looks like she's mortified, in pain, and is praying to God to take her now.
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@DanGrayson
Daniel R. Grayson
3 years
@Dantew28McBot @TasminaSheikh "But I don't need to speak to you. Goodbye."
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@DanGrayson
Daniel R. Grayson
3 years
@FemmeLoves Telling the parents is the right thing to do, because the parents are responsible for their children and need the information to care for them properly.
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@DanGrayson
Daniel R. Grayson
3 years
@ForWomenScot No further evidence is needed. He's male. That's enough.
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@DanGrayson
Daniel R. Grayson
2 years
@terfasaurus So a male who poses very well as a female gains the privilege of seeing females in a state of undress? This'll just motivate them to try harder.
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@DanGrayson
Daniel R. Grayson
4 years
@Woman4W @Paintpot17 Who needs studies? When a man takes a medal from a woman in a competition for women, it's unfair, because he's not a woman.
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@DanGrayson
Daniel R. Grayson
2 years
@DavidDhenry @EdinUniMedia What about those other people standing with him and helping block access?
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@DanGrayson
Daniel R. Grayson
3 years
@SInow @MileHighRobert Re: "the woman at the heart of the debate over transgender athletes" No, the man at the heart of the debate over transgender athletes.
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@DanGrayson
Daniel R. Grayson
3 years
@fairplaywomen Why all this talk about getting more data??? The only datum we need is that those men are not women.
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@DanGrayson
Daniel R. Grayson
2 years
@ShifterofShapes Pick an ideology to believe or an ideology to fight?
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@DanGrayson
Daniel R. Grayson
2 years
@orr_robinson @sharrond62 Transwomen are not women, they are men, and excluding them is the right answer.
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@DanGrayson
Daniel R. Grayson
2 years
@FionaHutton3 "You are conflating transwomen with women."
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@DanGrayson
Daniel R. Grayson
2 years
@rowinggeek @CatFinola @SWWalesReSister @Womans_Place_UK @fairplaywomen @FondOfBeetles @sharrond62 Even if the men had no advantage, it would still be unfair. They're taking competition spots and medals from the women.
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@DanGrayson
Daniel R. Grayson
5 months
@Glinner All trans women are fake women.
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@DanGrayson
Daniel R. Grayson
2 years
@OsteopathTish @ICFSport @WorldAthletics Men shouldn't be allowed to compete in women's events, no matter what their testosterone level is. Ever ever ever.
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@DanGrayson
Daniel R. Grayson
3 years
@hightreebud @LucyHunterB @lazyjoolz @ForwomenScot @Docstockk @ucu @EdinburghUni I suppose she thinks there's something weird about people who care about other people.
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@DanGrayson
Daniel R. Grayson
1 year
@KimJonesICONS @blablafishcakes Indeed, it doesn't matter. No men should be allowed in women's sporting events
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@DanGrayson
Daniel R. Grayson
3 years
@RedMendipBoy @billy_pilgrim85 @DrJessTaylor Re: "when being nice costs nothing, we should be nice" No, calling him "she" helps propagate a lie -- that humans can change their sex. It's best not to do it.
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@DanGrayson
Daniel R. Grayson
1 year
@TalkTV Yes, because they are men!
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@DanGrayson
Daniel R. Grayson
5 months
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@DanGrayson
Daniel R. Grayson
3 years
@Hogshead3Au @stcampbell01 @smerconish @iChampionWomen Thinking about advantages and mitigation is pointless. There's no reason to include men in women's swimming -- it's for women only, after all.
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@DanGrayson
Daniel R. Grayson
2 years
@trustednerd @BC_SPCA All those patches and the harness are available on the web for not much money. Nothing makes them official.
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@DanGrayson
Daniel R. Grayson
2 years
@isopodsocks You deserved better treatment from the professionals you consulted. It's not your fault.
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@DanGrayson
Daniel R. Grayson
2 years
@TheMoominmama @Michael_AW77 What's unfair is not that he has an advantage, but that he's a man in an event for women only.
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