
Professor of mathematics and computer science Bronx Community College, union activist @PSC_CUNY #1U. #NeverCrossAPicketLine Live in NY and still from WV.
NY
Joined June 2009
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Supporting unions with @PSC_CUNY in front of the Supreme Court
Sharon Persinger retweeted
In the past few days @DeltaAFA Flight Attendants have swapped stories w/ @amazonlabor workers and @UAW VW workers. Different workplaces, but same union busting. Same struggle to break through fear. Same awakening to power in our workplace by owning our #UnionNow Not so different
Sharon Persinger retweeted
A big step in the right direction to protect workers from extreme heat, an issue we have been fighting on at Amazon Labor Union-IBT Local 1 for years now!
We are proud to have stood with Mayor Mamdani today for this important announcement 🙌
Mayor Mamdani Holds Press Conference to Make an Extreme Heat and Worker Protection Announcement xitter.cf/i/broadcasts/1pJkOOEqW…
Sharon Persinger retweeted
We’re about to spend $300,000,000,000 rebuilding Iran after spending $80,000,000,000 destroying it, while telling Americans on Medicaid to take a hike.
America First.
Sharon Persinger retweeted
The stories and photographs from today’s voting rights marches in Alabama deserve to be seen by people who weren’t able to stand there in person. If this piece moves you, please share it widely and help make sure these voices aren’t lost in the noise of a crowded news cycle. open.substack.com/pub/joycev…
Sharon Persinger retweeted
Here's your periodic reminder that the CUNY system has propelled almost six times as many low-income students into the middle class and beyond as all eight Ivy League campuses, plus Duke, M.I.T., Stanford and Chicago, combined.
nytimes.com/2017/01/18/opini…
A four-year degree at the University of Chicago costs $386,000.
They just made it free for almost every family in America.
Starting Fall 2027, any household earning under $250,000 a year pays zero tuition.
Under $125,000, the school also covers the dorm, the meal plan, and every fee. The most expensive university in the Midwest just became one of the cheapest options in the country for almost anyone who can get in.
To understand how absurd this is, look at what you used to have to pay.
UChicago undergraduate tuition for 2025 to 2026 is $73,266. Full cost of attendance with room, board, fees, books, and living expenses is roughly $93,000 a year.
Across four years, the full price tag runs close to $386,000. That is the cost of a house in most American states. For a single college degree.
The school had a previous free tuition threshold sitting at $125,000 of household income. They just doubled it overnight.
The first thing nobody is saying out loud is what the $250,000 number actually means.
The median household income in the United States is roughly $80,000. Households earning $250,000 sit in the top 5% of the entire country.
UChicago is now telling 95% of American families that the sticker price does not apply to them. The most selective private university in the Midwest, the school that produced more Nobel laureates per capita than almost any institution on Earth, just stopped charging tuition to almost everyone who could realistically get in.
The second thing nobody is saying is what happens to the families just under $125,000. They are not getting a discount. They are getting a fully paid four-year residential education at one of the top ten universities in the world. Tuition, dorm, meal plan, fees, all of it. Zero.
A family making $120,000 a year is sending their kid to a school whose advertised cost is $93,000 a year and writing checks for nothing.
The third thing is the part that should be making every other elite university nervous.
UChicago is not the first to do this. MIT moved to $200,000 last year. Harvard moved to $200,000. Stanford moved to $150,000 with free room and board under $100,000. Princeton has had a version of this for years. Penn just announced a similar policy.
The number is climbing every cycle and the trigger for each new announcement is the previous announcement. Every school watching this is now under pressure to match or get embarrassed in the next admissions cycle. UChicago just set the new ceiling at $250,000. Somebody is going to push it to $300,000 within twelve months.
The reason the ceiling keeps moving is not generosity. It is competition for the same 3,000 students.
The top 20 universities in America are fighting for the same applicant pool every year. When MIT made tuition free under $200,000, every kid in that bracket who got into both MIT and a school still charging full price stopped weighing the decision. The free school wins.
The sticker price has stopped being a price for the people the universities want most. It has become a posted number that only the rich actually pay, and the rich do not need a discount to attend.
The endowments are what make this possible.
UChicago is sitting on $10.4 billion. Harvard is at $53 billion. MIT is at $25 billion. Stanford is at $36 billion. These are not schools running on tuition revenue. They are hedge funds with classrooms attached, and the tuition line on their balance sheet is a rounding error compared to investment returns and donor giving. Free tuition under $250,000 costs them almost nothing relative to what they earn each year on the endowment alone.
The cruel reality is that the schools that can afford to make this announcement are exactly the schools that did not need to.
The state university charging $30,000 a year cannot copy this. The small private liberal arts college running on a $400 million endowment cannot copy this. The cost of college in America is not going down. It is bifurcating.
The top of the pyramid is now functionally free for almost everyone who gets admitted. Everything below it is getting more expensive every year.
The student loan debt in America just crossed $1.8 trillion. The average graduate owes around $37,000. Forty-three million Americans are carrying education debt right now. And the schools that produce the smallest percentage of that debt are the ones that just made themselves free.
There is a generation of kids growing up right now whose parents earn $200,000 a year and quietly assumed UChicago, Harvard, MIT, and Stanford were out of reach. They were wrong. The schools they thought they could not afford are the only ones they actually can.
The hardest part of attending the University of Chicago in 2027 is no longer paying for it.
It is getting in.
Sharon Persinger retweeted
When I was born, Georgia’s Senator was an arch segregationist. Now I sit in that seat.
Sharon Persinger retweeted
Researchers at EPFL proved your AI is lying to you.
Not sometimes. Most of the time.
They built one of the hardest hallucination tests ever made with Max Planck Institute. 950 questions. Four domains where being wrong actually hurts. Legal. Medical. Research. Coding.
Then they ran every top model on it.
The results.
GPT-5. Wrong 71.8% of the time.
Claude Opus 4.5. Wrong 60% of the time.
Gemini 3 Pro. Wrong 61.9% of the time.
DeepSeek Reasoner. Wrong 76.8% of the time.
These are the smartest AI models on Earth. The ones you trust with your career. Your health. Your money.
You think turning on web search fixes it.
It doesn't.
Claude Opus 4.5 with web search. Still wrong 30.2% of the time.
GPT-5.2 thinking with web search. Still wrong 38.2% of the time.
The internet attached. Still lying to you in 1 out of every 3 answers.
Now the part that should scare you.
Medical questions. The one place being wrong can kill you.
GPT-5 hallucinated 92.8% of the time on medical guidelines.
Claude Haiku 4.5 hallucinated 95.7% of the time.
Gemini 3 Flash hallucinated 89% of the time.
Nine out of ten medical answers from popular AI models. Wrong.
It gets worse.
The longer you talk to it, the more it lies.
Early mistakes cascade. The model starts citing its own earlier hallucinations as facts. Your third message is more wrong than your first.
The paper, in its own words: "hallucinations remain substantial even with web search."
This is what hundreds of millions of people are doing right now. Asking software that lies in the majority of its answers. About their health. About their job. About their legal case. About their code.
Most are not checking.
Most never will.
But please. Keep using ChatGPT for medical advice.
The doctors need a break.
arxiv.org/abs/2602.01031
Sharon Persinger retweeted
And that’s a wrap on #NYSUTRA2026!
Grateful for our members, staff, and educators across New York who show up, stand together, and make this union strong. This is what it’s all about—solidarity in action. @nysut
Sharon Persinger retweeted
So proud of the work that our members are leading with Long Island Against Charter Schools 💙
At the 2026 #NYSUTRA, Long Island Against Charter Schools took to the stage to present on their organization and the work they're doing to strengthen public education on the island.
Join them in solidarity by taking action now: nysut.cc/mac1019
Sharon Persinger retweeted
United Auto Workers president Shawn Fain testifying in favor of a 32-hour workweek. "Eighty-four years ago the 40-hour workweek was established. And since then, we've had a 400 percent increase in productivity, and nothing's changed."
Court watchers in RED out early this morning to support immigrant neighbors on Mayday! #Solidarity #PSCMayDayProud
Sharon Persinger retweeted
There is no NYC without unions.
A people united and organized cannot be defeated. Together, we're showing the world what solidarity means.
1/2 hour before we meet up for the Pre-Rally at The New School, 63 5th Ave (13th and 5th Ave)
See you soon! #PSCMayDayProud
➡️ psc-cuny.org/MayDay
Nearly a thousand PSC members are in the streets of NYC today for International Workers' Day! 🌹❤️🔥
In the face of oligarchy and repression, May Day is more urgent than ever. So we're mobilizing with partners from @CentralLaborNYC and @theNYIC to say: WORKERS OVER BILLIONAIRES!
Sharon Persinger retweeted
New York’s teacher shortage is a direct result of Tier 6.
Educators must work nearly a decade longer and face penalties unless they stay until 63.
We’re asking the next generation to give more and get less—and they’re walking away.
Fix Tier 6 = real recruitment, real retention, and public schools our students deserve.
poughkeepsiejournal.com/stor…


































