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Cathy O'Neil

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Tuesday, February 20, 2018 - 7:35am
Saturday, February 17, 2018 - 5:05pm
Who cares if the stock market tanks? No, really. I’m wondering who actually has a stake in the levels of the stock market. The average person doesn’t have much savings, including retirement savings which is the standard way to have a direct stake in the market. In fact a majority of Americans, and more than […]
Saturday, February 17, 2018 - 5:05pm
Who cares if the stock market tanks? No, really. I’m wondering who actually has a stake in the levels of the stock market. The average person doesn’t have much savings, including retirement savings which is the standard way to have a direct stake in the market. In fact a majority of Americans, and more than […]
Monday, February 5, 2018 - 11:35am
This is a guest post by Eugene Stern, originally posted on his blog sensemadehere. My friend Cathy O’Neil just sent me an article she wrote for the NY Times reviewing two books by technologists about virtual reality (VR). Part of her take was that neither book talked enough about ways that VR could be abused, and she speculated that […]
Tuesday, January 30, 2018 - 11:35am
I just wrote my first book review for the New York Times. I reviewed two books about Virtual Reality, one by Jeremy Bailensen and the other by Jaron Lanier: Enter the Holodeck    
Monday, January 29, 2018 - 5:05pm
My newest Bloomberg View column just came out: No, I Don’t Want to Insure My Pizza Insurance can be useful, but too many schemes are distorting the concept.   For older Bloomberg View columns, please go here.
Thursday, January 18, 2018 - 5:05pm
My newest Bloomberg View article just came out: Personality Tests Are Failing American Workers All too often, they filter people out for the wrong reasons.   Read all of my Bloomberg View pieces here.
Monday, January 15, 2018 - 5:10pm
Three years ago I was out for a walk in Haiti when I met this boy who asked me to photograph him pointing to God. Aggrieved by the president’s recent disrespectful comments about Haiti, I am posting this as a reminder of what even the youngest of Haitian children know: There is a power higher […]
Monday, January 15, 2018 - 5:10pm
Since my last update I’ve been diagnosed with Graves’ Disease. You can look this up on Wikipedia, but the short version is it makes my thyroid hyperactive, which in turn makes me anxious and hyperactive, which in turn makes me exercise a lot, which in turn makes me very boring. It’s an autoimmune disease, and […]
Friday, January 12, 2018 - 11:35am
I will not repeat what the president said yesterday about Haiti, because it is too mean spirited to perpetuate. I will say that in my travels in Haiti I met people wealthier in spirit than our poor president.
Thursday, January 4, 2018 - 5:05pm
I’ve got a new Bloomberg View piece, which I think any fans of Aunt Pythia will enjoy: Maybe Sex Robots Will Make Men, Not Women, Obsolete They might at least create some healthy competition. For other columns, go here.
Wednesday, December 20, 2017 - 5:05pm
I wrote a new Bloomberg View piece about data analysis around sexual harassment and assault: What We Don’t Know About Sexual Harassment We lack the data needed to know how prevalent it is. My other Bloomberg View columns are here. Also, I quit Twitter, at least for now. It just kept bringing me down.
Wednesday, December 20, 2017 - 5:05pm
I wrote a new Bloomberg View piece about data analysis around sexual harassment and assault: What We Don’t Know About Sexual Harassment We lack the data needed to know how prevalent it is. My other Bloomberg View columns are here. Also, I quit Twitter, at least for now. It just kept bringing me down.
Tuesday, December 5, 2017 - 5:05pm
I’ll be giving a talk at Tufts on Thursday. Here’s the poster, please join me:   Also I’ll be in D.C. on Friday morning to talk data science education with mucky-mucks. That will be livestreamed, or you can join in person as well. Here’s the poster:
Tuesday, December 5, 2017 - 5:05pm
I’ll be giving a talk at Tufts on Thursday. Here’s the poster, please join me:   Also I’ll be in D.C. on Friday morning to talk data science education with mucky-mucks. That will be livestreamed, or you can join in person as well. Here’s the poster:
Monday, December 4, 2017 - 5:05pm
I found out there’s going to be another Women’s March by – you guessed it – going to a yarn store and finding there’d been a run on pink yarn. Even better, there are going to be a ton of Women’s Marches in a ton of cities. Get knitting, folks! And mark your calendars for Saturday, […]
Thursday, November 30, 2017 - 11:35am
Bloomberg View My newest Bloomberg piece is out, in which I consider the problem of false negatives in the context of love and war: False Negatives Can Be a Matter of Life and Death Algorithms will repeat our mistakes unless we know what we’re missing. You can see all of my Bloomberg View pieces here. […]
Thursday, November 30, 2017 - 11:35am

It’s easier to understand when you’ve got things right than exactly how you got things wrong. Therein lies an insight that could save a lot of lives.

Consider relationships. You can know whether you’re happy with your partner, but you can never be sure you shouldn’t have dated someone else entirely. Or say you own a company. Good and bad employees are easy to recognize: Some work hard and are happy, others shirk or quit soon after their expensive training ends. But it’s much harder to know whether you’ve passed over good candidates, because you never gave them a chance to prove themselves.

Wednesday, November 15, 2017 - 11:35am

My newest Bloomberg View piece just came out this morning: Ray Dalio Has an Unbelievable Algorithm Does it merely reinforce its maker’s biases?   Looking back I just realized that I never posted last week’s Bloomberg View column: Maybe Facebook Is Broken: How can you stop people from sharing biased and misleading stuff?   For […]

Tuesday, November 14, 2017 - 5:05pm
I got my first op-ed in the NY Times today: The Ivory Tower Can’t Keep Ignoring Tech  
Cathy O'Neil is the author of the blog mathbabe.org and several books, including Weapons of Math Destruction.