Ryan Radia (@RyanRadia) / X

Ryan Radia

82.5K posts

Ryan Radia

@RyanRadia

FRED & IPUMS enjoyer. Lawyer (DC). 🌐 Economics, charts, tech policy, urbanism, regulation, housing, transit. Growth: very good. RTs=demand letters. Likes: RNG

Washington, DC MSA (5101302)

Joined September 2009

Pinned
Ryan Radia
@RyanRadia
Mar 16, 2023
If you’ve checked my profile recently, Twitter might have said I haven’t tweeted yet. It’s a lie! A recent Twitter glitch stopped my profile from loading properly. So, to populate my profile timeline, here are some of my favorite moments in poasting—and replying—over the years:
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Ryan Radia
@RyanRadia
Oct 27, 2023
Replying to @Ian_Gay_briel
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Ryan Radia
@RyanRadia
Oct 30, 2023
This guy is inventing new forms of cultural appropriation
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Ryan Radia
@RyanRadia
Sep 11, 2024
Replying to @maiamindel
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Ryan Radia
@RyanRadia
Aug 17, 2025
Replying to @Duderichy
She was at a famously vegetarian restaurant, so asking the server for chicken was not an option (not to suggest pulling out a rotisserie chicken from her purse was remotely acceptable in this situation)
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Ryan Radia
@RyanRadia
Apr 7, 2024
Replying to @maiamindel
Apex predator, but also very funny
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Ryan Radia
@RyanRadia
Dec 3, 2022
Next time this viral image shows up on your timeline, remember, transporting 4 ounces of pears from Buenos Aires to Bangkok to Los Angeles by container ship emits less CO₂ than driving a typical American car just 500 feet. x.com/RyanRadia/stat…
Ryan Radia
@RyanRadia
Sep 17, 2021
Transporting a four-ounce pear cup from Buenos Aires to Bangkok to Los Angeles by container ship: 30g of CO2 emissions—plus 1g for every 56 miles the pear cup travels by truck. Driving a typical U.S. car two city blocks in Manhattan (north-south): 35.6g of CO2 emissions.
Ryan Radia
@RyanRadia
Mar 5, 2024
You often hear about the fatality rate per 100 million or 1 billion passenger miles in transportation statistics, but over the last 15 years, U.S. airlines have averaged less than 1 fatality per passenger *light-year* traveled
Ryan Radia
@RyanRadia
Mar 4, 2024
3 weeks ago marked 15 years since Feb 12, 2009—the last multiple-fatality accident involving a U.S. passenger airliner (Part 121). 11.6 billion passengers have since boarded a scheduled U.S. airline flight, with just 2 passenger fatalities (Part 121: Southwest 1380; PenAir 3296)
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Ryan Radia
@RyanRadia
Jun 3, 2025
Replying to @jdcmedlock
Same genre
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Ryan Radia
@RyanRadia
Jan 7, 2025
Replying to @vanillaopinions
Ryan Radia
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Ryan Radia
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Ryan Radia
@RyanRadia
Dec 11, 2023
Replying to @rieszspieces and @upzone_CA
Looks like the United States has roughly 1.5 million more residents of South Asian ancestry than the United Kingdom.
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Ryan Radia
@RyanRadia
Oct 12, 2022
These glasses can't come to market soon enough:
Ryan Radia
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Ryan Radia
Ryan Radia
@RyanRadia
Mar 9, 2022
Incredible
Ryan Radia
@RyanRadia
Aug 10, 2025
Replying to @colin_fraser
Reminds me of the famous bodybuilding forum debate over how many days there are in a week
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