Applied math prof at Stony Brook University: quantitative finance, computational science, economics, public policy, space exploration. Co-founder RWRI.

Stony Brook, NY, USA
Joined July 2009
This account has no pinned tweets.
13
2
104
Robert J Frey retweeted
That's what genocide looks like
This 260-year demographic timeline of Poland’s Jewish population reveals the devastating scale of the Holocaust. Source: buff.ly/MEHJWla
76
267
7
1,527
41,952
People who have lived under so-called communism--actually what is functionally socialism--universally reject it. The only people I see favoring it are those who have no experience living under it.
2
5
44
3,716
Robert J Frey retweeted
“It is always the mark of a barbarian to destroy something he does not understand.” — Arthur C. Clarke
37
535
30
2,019
30,307
Robert J Frey retweeted
We’ve been there, done that for 45 years, and it all imploded and collapsed from one day to the next, because guess what: Communism doesn’t work in real life. It’s time for you to move on.
It is almost 2027, and you still aren't a Communist. What are you even doing?
12
23
281
11,402
In 1945 Richard Feynman’s wife died. Afterwards he wrote her a love letter. At its end he apologized for not mailing it because he didn’t have her current address. The letter was found among his effects after he died in 1988.
1
6
63
3,397
Robert J Frey retweeted
You’re demanding that the state confiscate the intellectual and physical property of others, while at the same time throwing around the word “fascism.” Were you born retarded, or did you just become retarded immediately upon joining the Democratic Party?
Yes. Nationalize starlink!! …it’s past time. Just like his other shams…without massive taxpayer money, starlink and spacex would not make it. He reaps billions from us taxpayers - then spends it to elect fascists and destroy our electoral system.
50
488
12
6,409
64,073
Robert J Frey retweeted
In 2023 the FCC denied Elon Musk's Starlink $885 million, partly citing Starship's failed launches. Ten months later the tower caught Starship's 233-foot booster. Donald Trump says he forgot an important caller to phone Musk. In the video below Trump tells it himself: "I'm talking to this very important guy, I said wait a minute, I'm looking at something." He says he put the man on hold, watched "the two arms grab it," forgot him and called Musk to ask if that was him. "That was me." Starlink had won the $885 million in a 2020 FCC auction, to connect 642,925 rural homes and businesses. The FCC later called it a "still developing technology" that needed a $600 dish. Congress set aside $42.45 billion for rural internet in 2021. By October 2024 it had not connected a single home. Then Hurricane Helene cut off western North Carolina. Trump says a local asked if he knew Musk, he called, and Musk "got it for him so fast." FEMA says Trump had no part in its decision to send Starlink. Worked out. June 2025: Trump's Commerce Department rewrote the rules so the cheapest bid wins. Starlink won about $734 million for 473,000 addresses, roughly $1,550 each. In Texas the top fiber winner got about $12,700 per address. Starlink: $1,700. The case for fiber: a cable lasts decades and carries far more data, while a satellite's capacity is shared by everyone under it. $885 million denied in 2023, partly over a rocket that kept failing. $734 million awarded in 2025, after the tower caught it. Should public money pay for cables that last decades, or for dishes that work next month?
44
28
570
145,241
Robert J Frey retweeted
Shirky’s law: Institutions will try to preserve the problem to which they are the solution. xitter.cf/polymarket/status/2114…
JUST IN: California rehab operators accused of supplying illegal drugs to recovering addicts to keep them hooked & collect over $210 million from insurers.
1
5
33
1,871
Robert J Frey retweeted
That the Communist hammer and sickle isn’t commonly regarded as evil and offensive as the Nazi swastika is a failure of education.
“Dear Italian students, who today take to the streets carrying flags with the hammer and sickle and wearing T-shirts emblazoned with ‘CCCP’,” began an open letter in Italian by Lithuanian expat Neringa Budryt. “I would like to ask you a question: do you truly know what the symbols you carry represent? And do you know what would have happened to many of you had you openly demonstrated in countries living under the oppression of communist regimes? Let me tell you something. It is easy to display a red flag when, for you, communism is merely an abstract idea of equality, social justice, and rebellion against the system. It is easy to wear a T-shirt with "CCCP" on it when you have never experienced the reality of a communist regime. We come from that part of Europe where communism was not a T-shirt, a symbol of rebellion, or a romanticized notion of equality. It was the system in which we lived—a system we never chose. We know the history of Soviet repression, Stalinist purges, the Gulags, and mass deportations. Above all, we know the word "Siberia"—a place to which thousands of innocent people were forcibly deported, simply for thinking differently. In Siberia—amidst freezing cold, starvation, and forced labor—many lost their lives; those who survived carried the scars of that experience forever. Entire families were torn apart, and generations were denied the chance to live freely in their own homeland. In the countries of the Soviet bloc, censorship, political police, surveillance, and the suppression of dissent drastically curtailed individual freedoms. We grew up in a system where state control permeated even our daily lives. At school, we were required to wear the red necktie of the "Pioneers." We were monitored; they tracked where we went and even whether we attended church. Even faith—a choice that should belong to an individual’s own conscience—could become a cause for suspicion. We used to celebrate Christmas with our windows blacked out, to ensure no one would see us and report us. Because it was forbidden—just like so many other things: jeans, rock music, and all the symbols of a Western lifestyle. My mother returned from a Soviet labor camp. And do you know what happened to her? She was barred from continuing her education because she had been labeled an enemy of communism. Under a communist regime, you could not protest. You risked arrest, imprisonment, interrogation, persecution—and, in certain historical contexts, even death. In the Soviet Union and other communist regimes, political dissent could cost you your freedom and your life. Demonstrations independent of the authorities were not a guaranteed right; they were often suppressed by force. That is why it strikes me to see young Italians proudly displaying the hammer and sickle—symbols associated with regimes that persecuted and imprisoned millions of people. Today, you are free to take to the streets, shout against the government, criticize institutions, and wave your flags precisely because you live in a democracy that grants you these freedoms. Under an authoritarian regime of that kind, protesting against those in power could have landed you in prison. This is not about denying the existence of social injustices, inequalities, or the right to fight for a better world. You are free to take to the streets to demand a more just society—but you should not idealize a system that denied so many people the very things you are free to exercise today: the right to choose, to believe, to speak, and to dissent. Before wearing a T-shirt with "CCCP" on it, listen to those who experienced that world. Talk to the deportees and their descendants; read the accounts of those who endured the gulags and forced exile to Siberia. Learn what it meant to be stripped of your freedom, your home, your loved ones—and even any prospect of a normal life—simply because of your background or your beliefs. Before waving the hammer and sickle, please, study history thoroughly.”
269
2,708
135
13,887
201,750
Robert J Frey retweeted
“All of the Communist Parties, upon attaining power, have become completely merciless. But at the stage before they achieve power, it is necessary to use disguises.” — Aleksandr Solzhenitsyn
22
767
40
2,411
30,093
Robert J Frey retweeted
5 years ago: Starlink is such a stupid idea. Anyone wasting money investing in this Musk scam deserves to lose everything. Today: Starlink is essential to the defense of an invaded nation. Access to Starlink is a human right! Nationalize it!
280
1,222
69
19,700
568,765
"El poder que un multimillonario posee sobre mí es muchísimo menor que el que posee el más insignificante funcionario, el cual maneja el poder coercitivo del Estado para decidir cómo podré vivir y trabajar" Friedrich Hayek
38
718
44
2,219
27,816
Robert J Frey retweeted
Socialists be like: “Capitalism is a failure. Anyway, here’s how I’d distribute all the wealth it produced.”
89
773
39
10,311
106,814
Robert J Frey retweeted
Hitler, Mussolini y Stalin simplemente representaron tres variantes del socialismo. Subordinaban el individuo al Estado, concentraban el poder y fueron enemigos de la sociedad libre. La diferencia principal era si dividían a la gente por clase, nación o raza.
195
1,017
96
2,372
32,331
Milton Friedman: “Keep your eye on one thing and one thing only: how much government is spending, because that’s the true tax.” “If you’re not paying for it in the form of explicit taxes, you’re paying for it indirectly in the form of inflation or borrowing.”
67
1,593
131
5,350
127,881
Robert J Frey retweeted
57
633
50
1,029
14,879
If a capitalist builds apartments, socialists complain he's profiting off housing. If he doesn't build them, they complain there's a housing shortage. Their ideal developer is someone who builds unlimited apartments, charges nothing, and goes bankrupt. That'll fix housing.
15
44
1
420
5,066
Robert J Frey retweeted
.@SenSanders, you claimed Americans who paid $1 in federal income taxes last year paid more than the corporations on your list. False. Here’s a sample of their 2025 SEC filings showing federal income taxes paid in cash: CVS: $1.583 billion PayPal: $535 million Kohl’s: $41 million United Airlines: $33 million Tesla: $28 million Over $2.2 BILLION from just five companies. And here’s what you left out: United had $10.6 billion in federal tax-loss carryforwards. Tesla had $3.56 billion. Prior-year tax losses can legally offset future taxable income. You confused current federal income tax expense with cash taxes paid and ignored the prior-year losses. Did you bother reading the SEC filings?
If you paid $1 in federal income taxes last year, you paid more than: Disney American Airlines Citigroup CVS DoorDash GoDaddy H&R Block HP Kohl’s Ticketmaster Palantir PayPal Roku Southwest Airlines Tesla United Airlines Pizza Hut Taco Bell KFC Absurd. We need REAL tax reform.
141
493
41
1,766
26,916
Robert J Frey retweeted
82
892
24
2,451
18,298
Robert J Frey retweeted
Just a reminder: in 1995, Chicago experienced a major heat wave. Almost 800 people died. Afterward, there was a concerted effort to provide air conditioners and cooling centers. In 2012 there was a worse heat wave but only 26 people died as a result. Air conditioning works.
Blistering record heat in Europe this summer killed more than 50,000 people, with nearly two-thirds of that death toll blamed on human-caused climate change, a new study found. abcnews.link/EUhX7dR
63
661
16
10,289
145,178