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NunoSempere

Karma: 13,240

I run Sentinel, a team that seeks to anticipate and respond to large-scale risks. You can read our weekly minutes here. I like to spend my time acquiring deeper models of the world, and generally becoming more formidable. I’m also a fairly good forecaster: I started out on predicting on Good Judgment Open and CSET-Foretell, but now do most of my forecasting through Samotsvety, of which Scott Alexander writes:

Enter Samotsvety Forecasts. This is a team of some of the best superforecasters in the world. They won the CSET-Foretell forecasting competition by an absolutely obscene margin, “around twice as good as the next-best team in terms of the relative Brier score”. If the point of forecasting tournaments is to figure out who you can trust, the science has spoken, and the answer is “these guys”.


I used to post prolifically on the EA Forum, but nowadays, I post my research and thoughts at nunosempere.com /​ nunosempere.com/​blog rather than on this forum, because:

But a good fraction of my past research is still available here on the EA Forum. I’m particularly fond of my series on Estimating Value.


My career has been as follows:


You can share feedback anonymously with me here.

Note: You can sign up for all my posts here: <https://​​nunosempere.com/​​.newsletter/​​>, or subscribe to my posts’ RSS here: <https://​​nunosempere.com/​​blog/​​index.rss>

US credit rat­ing down­graded, $1T in Gulf state in­vest­ments in the US, Kur­dis­tan Work­ers’ Party dis­banded | Sen­tinel Global Risks Weekly Roundup #20/​2025

NunoSempereMay 19, 2025, 6:02 PM
49 points
0 comments1 min readEA link
(blog.sentinel-team.org)

Global Risks Weekly Roundup #19/​2025: In­dia/​Pak­istan ceasefire, US/​China tar­iffs deal & OpenAI non­profit control

NunoSempereMay 12, 2025, 5:11 PM
16 points
0 comments1 min readEA link

Global Risks Weekly Roundup #18/​2025: US tar­iff short­ages, mil­i­tary polic­ing, Gaza famine.

NunoSempereMay 6, 2025, 10:39 AM
22 points
0 comments3 min readEA link
(blog.sentinel-team.org)

The US Ex­ec­u­tive vs Supreme Court De­por­ta­tions Clash

NunoSempereApr 21, 2025, 8:57 PM
25 points
0 comments2 min readEA link
(blog.sentinel-team.org)

Sen­tinel’s Global Risks Weekly Roundup #11/​2025. Trump in­vokes Alien Ene­mies Act, Chi­nese in­va­sion barges de­ployed in ex­er­cise.

NunoSempereMar 17, 2025, 7:37 PM
40 points
0 comments6 min readEA link
(blog.sentinel-team.org)