This week @packlesshepherd and I released our latest paper. We use high frequency gps pings from 17 mil cellphones to study whether the launch of an innovative smartphone app in Ukraine helped civilians evade Russian military operations: https://t.co/y9WjCaPZSp Does it work? 🧵

Reemerging from my Twitter hole to roast @ChuckECheese. A $15 pizza the size of a snack plate that took 30 minutes to make. In this economy? 😂

Excited to share some professional news with you all this morning! Looking forward to joining @CGDev, and it’s all star team of experts and staff. Washington DC, here we come again! https://t.co/vEQ1QwWP1Y

Simon understood the assignment.

After lengthy legal fights, some victims got their stuff back. I waited outside the courthouse the day one couple picked up their property—& federal agents threatened to arrest me b/c I didn't have a "media permit." Never underestimate government's aversion to accountability. /8

Voltando hoje para o Rio depois de passar o trimestre na @UChicago. Passei esse período estudando sobre grupos criminais na América Latina e dando um curso sobre o mesmo tema para alunos de graduação e mestrado.

Chicago area has nowadays an incredible number of amazing scholars that study crime, violence and conflict. Thank you @anamarjona, @JuanAlbarracinD, @cblatts, @austinlwright, Martin Castillo, Paul Stanisland, Angélica Duran-Martinez and many others for amazing conversations.

We’re excited to welcome Chris Blair (@Chris_W_Blair) for a Wednesday Seminar on December 6. He will ask: How does mass refugee return shape conflict dynamics in destination communities? Watch live: https://t.co/4CA9NxeFmY

I talked about AI and elections with @galendruke from @FiveThirtyEight. It was fun.

The most frustrating thing about @ChatGPTapp 4 is wild inconsistency in conducting basic tasks like converting txt to beamer slides. One day, it makes beautiful slides with minimal prompts. Next day, same task, same prompt... it takes 5 or more requests to produce broken content.

For scale…

Let them eat biscuits.

Simon is convinced he was smiling.

We're hiring in PE!! @ubcVSE

And reminders of the road here, literally and figuratively

My shrine to the GOATs: Chicago’s parking enforcement Seattle’s beast mode @MoneyLynch

Rosie’s first serious art

While you’re in my office, you might enjoy: My wall of sneakers

Came back to @HarrisPolicy to find some hardware in my office. Shout out to the amazing co-instructors, TAs, and students.

I’m afraid something has gone terribly wrong

Rise and grind @HarrisPolicy!