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NunoSempere

Karma: 12,302

I am an independent research and programmer working at my own consultancy, Shapley Maximizers ÖU. 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.


I used to do research around longtermism, forecasting and quantification, as well as some programming, at the Quantified Uncertainty Research Institute (QURI). At QURI, I programmed Metaforecast.org, a search tool which aggregates predictions from many different platforms, which I still maintain. I spent some time in the Bahamas as part of the FTX EA Fellowship, and did a bunch of work for the FTX Foundation, which then went to waste when it evaporated.

Previously, I was a Future of Humanity Institute 2020 Summer Research Fellow, and then worked on a grant from the Long Term Future Fund to do “independent research on forecasting and optimal paths to improve the long-term.” I used to write a Forecasting Newsletter which gathered a few thousand subscribers, but I stopped as the value of my time rose. I also generally enjoy winning bets against people too confident in their beliefs.

Before that, I studied Maths and Philosophy, dropped out in exasperation at the inefficiency, picked up some development economics; helped implement the European Summer Program on Rationality during 2017, 2018 2019, 2020 and 2022; worked as a contractor for various forecasting and programming projects; volunteered for various Effective Altruism organizations, and carried out many independent research projects. In a past life, I also wrote a popular Spanish literature blog, and remain keenly interested in Spanish poetry.


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>

My highly per­sonal skep­ti­cism brain­dump on ex­is­ten­tial risk from ar­tifi­cial in­tel­li­gence.

NunoSempere23 Jan 2023 20:08 UTC
431 points
116 comments14 min readEA link
(nunosempere.com)

A Crit­i­cal Re­view of Open Philan­thropy’s Bet On Crim­i­nal Jus­tice Reform

NunoSempere16 Jun 2022 16:40 UTC
302 points
97 comments26 min readEA link

Big List of Cause Candidates

NunoSempere25 Dec 2020 16:34 UTC
269 points
71 comments47 min readEA link

Samotsvety Nu­clear Risk up­date Oc­to­ber 2022

NunoSempere3 Oct 2022 18:10 UTC
262 points
52 comments16 min readEA link

2018-2019 Long-Term Fu­ture Fund Gran­tees: How did they do?

NunoSempere16 Jun 2021 17:31 UTC
194 points
23 comments5 min readEA link

Shal­low eval­u­a­tions of longter­mist organizations

NunoSempere24 Jun 2021 15:31 UTC
192 points
34 comments34 min readEA link

Un­flat­ter­ing as­pects of Effec­tive Altruism

NunoSempere15 Mar 2024 10:47 UTC
187 points
53 comments1 min readEA link

Frank Feed­back Given To Very Ju­nior Researchers

NunoSempere1 Sep 2021 10:55 UTC
156 points
23 comments5 min readEA link

Samotsvety Nu­clear Risk Fore­casts — March 2022

NunoSempere10 Mar 2022 18:52 UTC
155 points
54 comments5 min readEA link

EA Fo­rum Low­down: April 2022

NunoSempere1 May 2022 14:48 UTC
154 points
8 comments7 min readEA link

Shap­ley val­ues: Bet­ter than counterfactuals

NunoSempere10 Oct 2019 10:26 UTC
141 points
54 comments14 min readEA link

In­tro­duc­ing Metafore­cast: A Fore­cast Ag­gre­ga­tor and Search Tool

NunoSempere7 Mar 2021 19:03 UTC
132 points
17 comments5 min readEA link

$5k challenge to quan­tify the im­pact of 80,000 hours’ top ca­reer paths

NunoSempere23 Sep 2022 11:32 UTC
126 points
14 comments4 min readEA link

Long list of AI ques­tions

NunoSempere6 Dec 2023 11:12 UTC
124 points
11 comments86 min readEA link

Valu­ing re­search works by elic­it­ing com­par­i­sons from EA researchers

NunoSempere17 Mar 2022 19:58 UTC
114 points
22 comments8 min readEA link

List of past fraud­sters similar to SBF

NunoSempere28 Nov 2022 18:31 UTC
114 points
11 comments7 min readEA link

An ex­per­i­ment elic­it­ing rel­a­tive es­ti­mates for Open Philan­thropy’s 2018 AI safety grants

NunoSempere12 Sep 2022 11:19 UTC
111 points
16 comments12 min readEA link

Why do so­cial move­ments fail: Two con­crete ex­am­ples.

NunoSempere4 Oct 2019 19:56 UTC
102 points
16 comments8 min readEA link