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ProfKeithDevlin

@profkeithdevlin.bsky.social

Mathematician (Emeritus, Stanford), author, blogger, and avid cyclist. For many years "The Math Guy" on NPR. Co-founder of the ed tech company BrainQuake. Also https://tinyurl.com/w6p2bx5s

728 Followers  |  471 Following  |  649 Posts  |  Joined: 24.11.2023  |  1.9719

Latest posts by profkeithdevlin.bsky.social on Bluesky

Tylenol Math โ€“ Mathematical Association of America

In today's "Devlin's Angle" for the MAA, I delve into the studies carried out on the safety of Tylenol. I thought I'd find interpreting correlation as causation -- a common error. What I did find was far more interesting mathematically. My focus is on math thinking. maa.org/math-values/...

07.10.2025 13:26 โ€” ๐Ÿ‘ 2    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0
Tylenol Math โ€“ Mathematical Association of America

In today's "Devlin's Angle" for the MAA, I delve into the studies carried out on the safety of Tylenol. I thought I'd find interpreting correlation as causation--a common area error. What I did find was far more interesting mathematically. My focus is on math thinking. maa.org/math-values/...

07.10.2025 13:24 โ€” ๐Ÿ‘ 1    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0
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Very proud of my daughter.

17.07.2025 22:04 โ€” ๐Ÿ‘ 2177    ๐Ÿ” 376    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 41
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26.09.2025 00:05 โ€” ๐Ÿ‘ 29068    ๐Ÿ” 8963    ๐Ÿ’ฌ 19    ๐Ÿ“Œ 1812
Trump gives DISASTER UN Speech as TELEPROMPTER BREAKS
YouTube video by MeidasTouch Trump gives DISASTER UN Speech as TELEPROMPTER BREAKS

I love the way Republicans run America. They have indeed Made America Great Again. How can so many people not see it. www.youtube.com/watch?v=qE8T...

23.09.2025 23:40 โ€” ๐Ÿ‘ 1    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0

โ€œCharlie Kirk memorial to be on par with a state funeralโ€ฆโ€
- WaPo lead headline

WaPo has nothing on โ€œBorder Csarโ€ Tom Homan, FBI & $50,000 bribe, widely reported elsewhere.

21.09.2025 12:31 โ€” ๐Ÿ‘ 1    ๐Ÿ” 3    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0

It really is like Nixon live blogging Watergate and the journalism establishment saying eh, what can you do

21.09.2025 12:42 โ€” ๐Ÿ‘ 1625    ๐Ÿ” 337    ๐Ÿ’ฌ 23    ๐Ÿ“Œ 4
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Read the Pentagonโ€™s New Restrictions on Reporters The Pentagon said it would forbid reporters from gathering any information that had not been authorized for release, and would revoke press passes from any journalists who did not obey.

The Pentagonโ€™s new rulebook for the press states these 2 sentences, consecutively:

โ€œDoW remains committed to transparency to promote accountability.โ€

And

โ€œDoW information must be approved for public release โ€ฆ before it is released, even if it is unclassified.โ€

www.nytimes.com/interactive/...

20.09.2025 13:47 โ€” ๐Ÿ‘ 277    ๐Ÿ” 124    ๐Ÿ’ฌ 31    ๐Ÿ“Œ 14
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Censorship Is the Authoritarianโ€™s Dream The right to free expression must include the right to say horrible and evil things.

"More professors in the United States have been fired for controversial views in the past week than any other week in all of American history."
www.insidehighered.com/opinion/colu...

19.09.2025 10:24 โ€” ๐Ÿ‘ 4077    ๐Ÿ” 1917    ๐Ÿ’ฌ 72    ๐Ÿ“Œ 103
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Western States Issue Their Own Vaccine Recommendations to Counter Kennedy

The Western States of America has a nice ring to it. It would be one of the world's most productive nations, and be free of having to prop up a bunch of low productivity states. It would also have freedom of speech. One can dream. www.nytimes.com/2025/09/17/h...

18.09.2025 13:41 โ€” ๐Ÿ‘ 2    ๐Ÿ” 1    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0
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Not One, But Two Men Were Found Hanging in Mississippi | Black Zone Magazine

Updated second link: blackzonemagazine.com/not-one-but-...

16.09.2025 15:00 โ€” ๐Ÿ‘ 1431    ๐Ÿ” 874    ๐Ÿ’ฌ 49    ๐Ÿ“Œ 131
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Black student found hanging from tree at Delta State University The body of 21-year-old Demartravion "Trey" Reed was discovered on Monday, prompting the university to cancel classes and campus activities.

Trey Reed, found hanging in the middle of a college campus thegrio.com/2025/09/15/b...

16.09.2025 14:33 โ€” ๐Ÿ‘ 1081    ๐Ÿ” 493    ๐Ÿ’ฌ 33    ๐Ÿ“Œ 52

A Black man and a homeless man were found hanging from trees in Mississippi yesterday, for those who havenโ€™t seen yet because itโ€™s barely made it out of local news.

16.09.2025 14:30 โ€” ๐Ÿ‘ 15196    ๐Ÿ” 8060    ๐Ÿ’ฌ 756    ๐Ÿ“Œ 698
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Robert Redford has died. He was 89 years old. RIP.

Just a few years ago, he had this to say:

16.09.2025 14:11 โ€” ๐Ÿ‘ 4026    ๐Ÿ” 1230    ๐Ÿ’ฌ 108    ๐Ÿ“Œ 65
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This picture was taken in 2017 of Saffiya Khan confronting racists at a racist rally organised by the English defense league..... picture is as powerful now as it was then.....

16.09.2025 17:48 โ€” ๐Ÿ‘ 255    ๐Ÿ” 64    ๐Ÿ’ฌ 18    ๐Ÿ“Œ 2

@charles-ex.bsky.social @ginger146.bsky.social

17.09.2025 09:36 โ€” ๐Ÿ‘ 3    ๐Ÿ” 1    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0

The Trump adulation rag that was once the New York Times seems to overlook the fact that the young man in question confessed to a family member, who then informed the authorities. messaging-custom-newsletters.nytimes.com/dynamic/rend...

12.09.2025 16:00 โ€” ๐Ÿ‘ 3    ๐Ÿ” 2    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0

The party us a cult. For todayโ€™s Republicans, the leader is a god. They donโ€™t see what the rest of us do.

12.09.2025 14:32 โ€” ๐Ÿ‘ 3    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0

Latest report says the shooter himself told a family member he did it.

12.09.2025 14:29 โ€” ๐Ÿ‘ 1    ๐Ÿ” 1    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0
CACURRESS
Earlier today, there was a credible bomb threat to my home, where Ellen and I raise our young children. The threat has been cleared, and I am grateful to law enforcement for their quick response and for keeping my family and our neighborhood safe.
I know that people are on edge-it's a scary time. This incident came just a day after the murder of Charlie Kirk and in the midst of an escalating pattern of political violence in Michigan and in America. The purpose of this violence is to silence, intimidate, and eliminate people and their voices from our society. That won't work on me. We cannot let this remain our reality.
We cannot tolerate political violence. We cannot excuse it. We cannot normalize it. We have to push through this and do the work to do better.
It's not easy, but nothing important ever is. It's up to us to dig deep and commit to ending violence and creating a safe, healthy society
LIEUTENANT GOVERNOR GARLIN GILCHRIST

CACURRESS Earlier today, there was a credible bomb threat to my home, where Ellen and I raise our young children. The threat has been cleared, and I am grateful to law enforcement for their quick response and for keeping my family and our neighborhood safe. I know that people are on edge-it's a scary time. This incident came just a day after the murder of Charlie Kirk and in the midst of an escalating pattern of political violence in Michigan and in America. The purpose of this violence is to silence, intimidate, and eliminate people and their voices from our society. That won't work on me. We cannot let this remain our reality. We cannot tolerate political violence. We cannot excuse it. We cannot normalize it. We have to push through this and do the work to do better. It's not easy, but nothing important ever is. It's up to us to dig deep and commit to ending violence and creating a safe, healthy society LIEUTENANT GOVERNOR GARLIN GILCHRIST

Lt. Governor and gubernatorial candidate in Michigan, Garlin Girlchrist, had to leave his home because of a bomb threat

12.09.2025 12:35 โ€” ๐Ÿ‘ 418    ๐Ÿ” 173    ๐Ÿ’ฌ 6    ๐Ÿ“Œ 13

just could not be clearer in moments like this that weโ€™re all paying an army of psychopathic cowards specifically to harass black teenagers

11.09.2025 13:11 โ€” ๐Ÿ‘ 287    ๐Ÿ” 30    ๐Ÿ’ฌ 3    ๐Ÿ“Œ 0

it is bitterly funny that every other tax dollar in this country goes towards funding the most technologically advanced police state on the planet and yet they never have much pep in their step when itโ€™s time to catch a murderer

11.09.2025 13:03 โ€” ๐Ÿ‘ 736    ๐Ÿ” 75    ๐Ÿ’ฌ 15    ๐Ÿ“Œ 2

This is not the message the country needs. We need unifying leadership to take down the temperature, not exploitative blame-seeking that falsely pins all political violence on one side of the spectrum to fit Trumpโ€™s narratives. Enough. Americans are tired of the divisiveness.

11.09.2025 01:24 โ€” ๐Ÿ‘ 2391    ๐Ÿ” 431    ๐Ÿ’ฌ 170    ๐Ÿ“Œ 26

A real leader would remind us that the vast majority Americans do not hate each other. That what unites us is greater than what divides us. That violence is not a solution.

But Trump is going to use this as an opportunity to suppress critics who had nothing to do with this crime and condemn it.

11.09.2025 01:24 โ€” ๐Ÿ‘ 973    ๐Ÿ” 211    ๐Ÿ’ฌ 34    ๐Ÿ“Œ 9
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Yes. Yes, they are.

10.09.2025 21:38 โ€” ๐Ÿ‘ 19620    ๐Ÿ” 6527    ๐Ÿ’ฌ 763    ๐Ÿ“Œ 282

Senate Republicans just voted to block an amendment to release the Epstein files. What are they trying to hide and why?

10.09.2025 23:13 โ€” ๐Ÿ‘ 1003    ๐Ÿ” 304    ๐Ÿ’ฌ 92    ๐Ÿ“Œ 31

The problem with stopping escalatory violence is that it requires political factions to see the other side as not an enemy. You can't only find violence targeted at yourself as abhorrent.

Which is difficult to square with months of cheerleading for deploying the military to Democratic-run cities.

10.09.2025 23:32 โ€” ๐Ÿ‘ 1712    ๐Ÿ” 322    ๐Ÿ’ฌ 25    ๐Ÿ“Œ 13

itโ€™s stunning how passionately and viscerally a bunch of white guys with faces like thumbs hate Greta Thunberg

10.09.2025 23:43 โ€” ๐Ÿ‘ 419    ๐Ÿ” 48    ๐Ÿ’ฌ 11    ๐Ÿ“Œ 0
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โ€œHow Can You Be So Ignorant?โ€: GOP & Dem. Senators Slam RFK Jr. for Attacks on Vaccines & Science Both Democratic and Republican senators grilled Health and Human Services Secretary Robert F. Kennedy Jr. on Thursday in a contentious hearing on his policies and anti-vaccine misinformation. RFK fire...

"Robert F. Kennedy Jr. has a 20-year history of being an anti-vaccine propagandist, science denialist and conspiracy theorist."

08.09.2025 02:01 โ€” ๐Ÿ‘ 265    ๐Ÿ” 84    ๐Ÿ’ฌ 10    ๐Ÿ“Œ 5

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