Let’s lower the rent! As mayor, I will triple housing production by cutting red tape, lowering costs, and eliminating pointless bureaucracy.

Digital Sabbath On June 21, 2026, we all put down our phones together. Join the Digital Sabbath.

I made an app where we all delete social media together for one day — June 21, summer solstice.

You pick which apps to block for that day, everything else works normal.

Now freely available on the iOS app store!

Digital Sabbath On June 21, 2026, we all put down our phones together. Join the Digital Sabbath.

I made an app where we all delete social media together for one day — June 21, summer solstice.

You pick which apps to block for that day, everything else works normal.

Now freely available on the iOS app store!

Graphic with a faded image of mangled vehicles after a car collision. The main text is a quote that says “speed wasn’t a factor.“ The tagline at the bottom says speed is always a factor. The ad is from the Urban Truth Collective.

When it comes to the likelihood of car crashes, or the deadly consequences of car crashes, speed is ALWAYS a factor. #UrbanTruth

How do scientists use Claude Code (CC)?

I created a new dataset using ORCID profiles with github links, combined with public co-authored CC commits.

Key findings...

How Do Scientists Use Claude Code? Measuring Claude Code adoption among 16,000 scientists on GitHub

- 2% adoption rate of CC among scientists in our dataset
- U-shaped adoption curve by seniority (grad students and post-tenure profs lead in terms of adoption)
- In terms of CC adoption, economists and U.S. tier 1 institutions lead the pack

republicofscience.substack.com/p/how-do-sci...

How do scientists use Claude Code (CC)?

I created a new dataset using ORCID profiles with github links, combined with public co-authored CC commits.

Key findings...

Science Communication is Broken New Media for New Science

A new post from me on why science communication is broken, and why we need a new generation of story tellers, if we are to rebuild the social contract for public science:

ml4sci.substack.com/p/science-co...

#scicomm 🧪

I am curious to get people's reactions/thoughts! Please do let me know what you think

Science Communication is Broken New Media for New Science

A new post from me on why science communication is broken, and why we need a new generation of story tellers, if we are to rebuild the social contract for public science:

ml4sci.substack.com/p/science-co...

#scicomm 🧪

It's very difficult for countries to simultaneously transition away from coal and increase electricity per capita consumption

Arguably only a few countries have pulled it off at the same time:

You can play with the data here: coal-electricity.streamlit.app

It is also insane how much faster you can do data viz projects like this with AI now:
> google colab+gemini for data processing + visualization
> codex+git integration for pushing code
> streamlit+plotly for web visualization UI

It's very difficult for countries to simultaneously transition away from coal and increase electricity per capita consumption

Arguably only a few countries have pulled it off at the same time:

Scaling laws for particle accelerators 🧪

“[Cornett] then described his anger at illegal immigration, telling the detective that he was ‘pissed’ about undocumented migrants receiving welfare funds, phones and health insurance, and that he had ‘driven around before with the same thought,'” court documents state. “[He] later asked the detective whether he could be ‘charged for [his] thoughts,’ and went on to explain that he fantasized about flying an Apache helicopter gunship to the border and firing on undocumented migrants traveling into the United States in order ‘to deter’ other undocumented migrants from attempting to cross the border.” Cornett’s housemates also told detectives that he was “kind of obsessed” with cable news stories about undocumented immigrants entering the United States. Notably, neither victim was identified as an undocumented immigrant within court documents.

A Virginia guy hunted a Latino man, cornered him, questioned him, and then shot him and his friend, because he assumed the guy was an undocumented immigrant. He was radicalized by Fox News etc. and, of course, Trump. www.wric.com/news/local-n...

I don't know why this paper is open in my tabs, or who sent it to me, but it's important! It's about the Democrats' faith that good policy will yield political support, which appears, with some examination, to be wrong.

Building an AI-Powered Grid with Kyri Baker How AI can optimize power flow, cut emissions, and make the grid more stable and efficient

#Energysky 🧪

Everyone is talking about the demands AI is placing on the grid.

But can AI help us meet the very challenges it poses for the grid?

Check out my convo with @kyrib.bsky.social on her research using AI to accelerwte power grid simulations!

ml4sci.substack.com/p/building-a...

A tremendous rave for nuclear energy in Washington DC last night!

#Energysky

A tremendous rave for nuclear energy in Washington DC last night!

#Energysky

Launching Cohort 01 A new approach to learning

Launching Learning Ledger — an 8-week cohort for young people to start a substack and learn about a topic of their choice by writing about it weekly. No grades, no prestige, just public accountability.

Share w/ any curious, motivated students!

open.substack.com/pub/learning...

Launching Cohort 01 A new approach to learning

Launching Learning Ledger — an 8-week cohort for young people to start a substack and learn about a topic of their choice by writing about it weekly. No grades, no prestige, just public accountability.

Share w/ any curious, motivated students!

open.substack.com/pub/learning...

#energysky

The biggest (nuclear) party of the year is coming to DC

No panels, no keynotes, just energy policy you can dance to

DC friends - come join us for a night of energy fun!

www.eventbrite.com/e/rave-for-n...

#energysky

The biggest (nuclear) party of the year is coming to DC

No panels, no keynotes, just energy policy you can dance to

DC friends - come join us for a night of energy fun!

www.eventbrite.com/e/rave-for-n...

Shelby Newsad on the Venture Thesis for Autonomous Science How AI is changing biotech R&D and why Compound VC is betting on discovery infrastructure

🧪Ep2 of the in-silico podcast now out!

In this ep, we have Shelby Newsad at Compound VC on to talk about their recent autonomous science workshop and the venture thesis for #SelfDrivingLabs

ml4sci.substack.com/p/shelby-new...

Shelby Newsad on the Venture Thesis for Autonomous Science How AI is changing biotech R&D and why Compound VC is betting on discovery infrastructure

🧪Ep2 of the in-silico podcast now out!

In this ep, we have Shelby Newsad at Compound VC on to talk about their recent autonomous science workshop and the venture thesis for #SelfDrivingLabs

ml4sci.substack.com/p/shelby-new...

Trump pardons January 6th insurrectionist (eight years for beating a cop) who proceeds to come to *Henrico County* and get arrested for breaking into a home.

Can’t make this up.

Self-Driving Labs: AI and Robotics Accelerating Materials Innovation | Perspectives on Innovation | CSIS Self-Driving Laboratories (SDLs) contribute to U.S. technology leadership by enhancing productivity in materials science and reshaping critical minerals research.

Would love to be added! I've written on self-driving labs from US policy perspective

for instance:

www.csis.org/blogs/perspe...

fas.org/publication/...

I created a #StarterPack for #SelfDrivingLabs. Please comment if you would like to be added: go.bsky.app/Jq7EKC2

Looking forward to the discussions!

Big things on the agenda for introduction in Baltimore on Monday:

•Plex Reform
•Single-Stair Reform
•Parking Reform

#energysky

very funny that a shell subsidiary is working with a Texas Energy called "Abundance Energy" on VPPs