David Hsu

David Hsu

@dhsu.bsky.social

Professor studying cities, infrastructure, climate, energy, long bike rides, the Boston Celtics, & the drop serve. Personal account representing only me. Likes, reposts ≠ endorsements.

10,560 Followers 1,193 Following 946 Posts Joined Oct 2023
2 days ago
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Dorkapalooza: The Oral History of the Sloan Sports Analytics Conference This is how the revolution was quantified

Daryl Morey, MIT graduate:

"Bill [Simmons] famously coined the conference name of “Dorkapalooza” and sadly then called me Dork Elvis, which has stuck with me and is a little frustrating. You don’t get to pick your nickname." www.theringer.com/2026/03/06/n...

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3 days ago
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Just Put It On a Map An underrated strategy for urbanist persuasion, powered by open source tools

This visualization tool for urban land value is pretty neat, though the Azure data feed for some cities are presently disrupted (maybe a temporary cyberattack I heard mentioned this morning).

open.substack.com/pub/progress...

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3 days ago
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College students can ‘call a boomer’ from a new phone booth on Comm. Ave. Here’s the idea behind it. - The Boston Globe The BU Pavement Coffeehouse was a natural location for the phone booth, with its college-age clientele and high foot traffic.

"The goal, according to Matter Neuroscience, the company that set up the phone connection, is simply to get younger and older people to talk to each other ... to provide a connection between two groups that studies show are the loneliest in the United States."

www.bostonglobe.com/2026/03/11/m...

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4 days ago
Sustainable Energy and the challenge of connecting technical findings to the policymaking literature | Statistical Modeling, Causal Inference, and Social Science

My students know that I still teach using his 2008 book! statmodeling.stat.columbia.edu/2008/12/04/s...

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4 days ago
Remembering David MacKay | Statistical Modeling, Causal Inference, and Social Science

Nice to see this 10th anniversary conference for David MacKay's untimely death. I generally do not believe that anyone remembers our work after we die, but it also helps to be a "smart, generous, and committed person". statmodeling.stat.columbia.edu/2026/03/01/r...

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4 days ago
Map showing Everett and proximity to Boston

This photo essay (by bicycle!) has everything you probably wanted to know about energy infrastructure in Everett, MA: histecon.fas.harvard.edu/climate-hist...

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4 days ago
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A bucketful of memories Some bikes are more meaningful than others.

A celebration of the family cargo bike. open.substack.com/pub/nminus1b...

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6 days ago

Locally yes, but my point is that this may shape how policymakers in DC and financial institutions in NY think about response elsewhere to sea level rise through mechanisms like property losses, damage estimates, insurance costs, coastal defenses, migration, and abandonment.

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6 days ago
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Striking illustration showing that the *only* coast on earth that has accurate measurements of sea level rise is the Atlantic coast in North America. Is this why decision-makers in Washington DC and New York City don't feel the same urgency as everywhere else? www.nytimes.com/2026/03/04/c...

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1 week ago

I quite enjoyed “North Woods” by Daniel Mason. A celebration of Western Massachusetts history, forests, and birds.

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1 week ago

The definition of corruption: "noun: dishonest or fraudulent conduct by those in power, typically involving bribery."

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1 week ago

If proficiency cannot be effectively measured, then maybe we should not be teaching it either.

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1 week ago

That's probably why grade deflation or standards have to get monitored and enforced from the top, as I think Princeton is doing.

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1 week ago
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Harvard students think it’s unfair ‘when they work hard and don’t get an A,’ internal report says - The Boston Globe Last academic year, A's made up 60 percent of all course grades given to Harvard undergraduates.

A Harvard colleague calls grading there: "Fifty Shades of A". www.bostonglobe.com/2025/11/12/b...

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1 week ago
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Just another perfect day, I love MA.

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1 month ago
A giant sphere of flesh in Central Park towering over the city like a big gross meatball. This was made by redditor kiwi2703 to show what it would look like if you combined every human on Earth into a ball, and it’s clearly a bad idea

Within 18 months all white collar workers could be replaced by a 1km sphere of flesh in Central Park

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3 weeks ago
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The iconic Olympic broadcast call that almost never was: ‘Here comes Diggins!’ Jessie Diggins and Kikkan Randall's gold-medal race in 2018 changed U.S. cross-country skiing forever, and the TV call played a key role.

I'm seeing this eight years after the fact and I still think it's pretty great. www.nytimes.com/athletic/704...

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3 weeks ago
YouTube
The first Olympic gold medal in U.S. cross-country skiing history YouTube video by Team USA

"HERE COMES DIGGINS! HERE COMES DIGGINS!".

What a great call. youtu.be/IVuIoS7HolE?...

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1 month ago
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People won’t stop going out on the frozen Charles River, despite the risks — and the many, many warnings - The Boston Globe Walkers, bikers, skaters, even ice-fishermen have ignored pleas to stay off the ice for generations. They do so at their peril.

I've always wanted to do this. www.bostonglobe.com/2026/02/11/m...

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1 month ago
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The Boston accent is disappearing. In Southie, that carries a deeper meaning. YouTube video by The Boston Globe

An enjoyable short segment. youtu.be/qLXvYmS6jPw?...

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1 month ago
Sales announcement part 1 Sales announcement part 2

Today I received what I found to be a remarkably entertaining sale notice from an online bike shop I've ordered from before. It's just goofy and funny, two aspects that I really need more in my life more than anything AI can do.

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1 month ago

No, not at all!

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1 month ago
Frequently Asked Questions (FAQs) - U.S. Energy Information Administration (EIA)

If you want the useful article, usefully near, as is everything the US EIA does: www.eia.gov/tools/faqs/f...

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1 month ago

TIL that 1 MCF ~= 1.038 MMBTU based on 2023 average heat content, so convert gas volumes to energy all you want (within +/-4%!)

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1 month ago

Love this.

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1 month ago

I would argue that knowing how to achieve the goal; deciding if it is worth it compared to other goals; and thinking about the pathway are all important gateways to building support and overcoming that resistance.

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1 month ago

As someone who used to work in the City of New York and at a muni (Seattle City Light), I don't think that NYC has the capacity to run a utility rn. I've heard the critique that CCAs are a half measure, but municipalization is and always will be hard. We can aim that way but there are so many steps.

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1 month ago

So, I don't know anyone in this admin but I did talk CCA with some NYC staffers 4-5 yrs ago. Some bitterness then over Westchester County excluding Yonkers. CCA could get a higher renewable content or even RECs attached even to gas, but it depends on whether PPAs and RECs are additional in NYS.

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1 month ago

I've thought about analyzing that, but my first guess is no. Then again, my thinking could be shaped by Northeast, where a lot of spending has to do with old existing pipes and relatively little new exurban growth.

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1 month ago

Here's the slide I use when I talk about rising costs in BOTH gas and electricity systems. Capital expended on distribution poles, wires, and pipes is the main cost for utilities and are the main driver of your rapidly growing energy bills. Gas 4X and electricity 2X inflation between 2003 and 2023.

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