A new paper with Jurgen Landes and Soroush Rafiee Rad: A decidable class of inferences in first-order objective Bayesian inductive logic. Available free until March from this link: authors.elsevier.com/c/1mYJscCqwz...

Rani Lill Anjum - Combining evidence for establishing causality. Online talk, 23 February 2026, 3-4.30pm UK time. All welcome! jonwilliamson.uk/mosep

Upcoming online talks on Evidential Pluralism: Lindley Darden, Rani Lill Anjum, Caterina Marchionni, Isabel Hanson, Nancy Cartwright, Jacob Stegenga. All welcome. jonwilliamson.uk/mosep

Proud to launch an international multidisciplinary project to look deeper into causality and evidence assessments regarding uses of psychedelics in medicine www.ipeawg.org 🧪 🧠📈 #philsci

IPEA-WG – Independent Psychedelic Evidence Assessment Working Group | Discover Psychedelic Insights Today

Explore evidence-based policies on psychedelics and mental health, featuring scientific research, expert insights, and multidisciplinary perspectives from IPEA-WG.

ipeawg.org

I am happy to be part of the organization of the next Causality in the Sciences conference in Sevilla, focusing on cases from medicine. Mark your calendars for October 8-9th 2026. Deadline for abstract submission: March 8th. More details here: eventos.us.es/142286/secti...

This new paper puts forward a counterexample to orthodox Bayesianism - the "red faces" example: academic.oup.com/analysis/adv...

The heuristic use of conditionalisation

Abstract. I provide an example in which Bayesian conditionalisation fails to validate plausible claims about rational permissibility. The example suggests

academic.oup.com

13 November 2025: workshop on Qualitative Evidence in Systematic Review, University of Manchester. All welcome. jonwilliamson.uk/conferences/...

Online talk, 21 October. Miriam Solomon (Temple University). How to be an Evidential Pluralist. All welcome! jonwilliamson.uk/mosep

1/3 Full house in Aula Baratto at Ca' Foscari University for Day 2 of #ENPOSS2025. Morning sessions include a symposium chaired by @mjbuedo.bsky.social on 'Pros and Cons of Evidential Pluralism in the Social Sciences'

Online talk, 29 September. Jonathan Fuller (Pittsburgh). An argument framework for evidence synthesis and evidence-to-decision analysis. All welcome! jonwilliamson.uk/mosep

Many thanks to Jie Gao, Rosa Runhardt, Erik Weber and Michael Wilde for a very nice symposium on the book Evidential Pluralism in the Social Sciences. Both the book and most of the papers are available open access. link.springer.com/collections/... #philsky #philsci

21 July, 3-4.30pm. Rosa Runhardt (Radboud) & Jon Williamson (Manchester). Evidential Pluralism and educational ethnography. All welcome! jonwilliamson.uk/mosep

Online talk, 30 June. 3-4.30pm. Federica Russo (Utrecht). How is Who. Evidence as Clues for Action in Participatory Research Interventions. All welcome. jonwilliamson.uk/mosep

On 16 June, an online talk by Phyllis Illari (UCL). Epistemic games and causal problems: a framework for teaching the evaluation of scientific information. All welcome! jonwilliamson.uk/mosep

A nice introductory podcast on EBM+ by the UK Centre of Excellence on in-silico Regulatory Science and Innovation @afrangi.bsky.social : www.podbean.com/media/share/...

PhD Timeline xkcd.com/3081

A very nice conference on the pros and cons of EBM: www.centerphilsci.pitt.edu/event/eviden...

Some very welcome respite from trade wars: Progic 2025 at CMU www.cmu.edu/progic2025/h...

14 April, 3-4.30pm UK time. Online talk. Alexandra Trofimov (Manchester). *How Evidential Pluralism mitigates epistemic injustice in evidence-based evaluation*. All welcome! jonwilliamson.uk/mosep

A series of online talks on Evidential Pluralism - all welcome: jonwilliamson.uk/mosep

AI is that drunk bloke who's always in the pub, jumping into other people's conversations and talking absolute bollocks.

Newly published: Perspectives on Logics for Data-Driven Reasoning, edited by Hykel Hosni and Jürgen Landes. Springer, 2025. doi.org/10.1007/978-...

Perspectives on Logics for Data-driven Reasoning

Provides a state-of-the-art presentation of the role logic can have in making the most of the current opportunities, while making explicit the challenges

doi.org

The Reasoner (an interdisciplinary gazette for research on reasoning, inference and method) has a new format: thereasoner.org

How should we evaluate whether a law is effective? We can't conduct blinded trials that randomise a law to individuals, so orthodox evidence-based evaluation methods fail. My colleague Alexandra Trofimov and I argue for an approach based on Evidential Pluralism: www.tandfonline.com/doi/full/10....

Applying evidential pluralism to evidence-based law: EBL+

Evidence-based law seeks to make best use of evidence to assess the effectiveness of laws and regulations. The question arises as to how exactly to make best use of evidence. This paper argues that...

tandfonline.com

Just arriving on my first day of a new job at Manchester university. Very excited to be joining the philosophy department here.

If you protest against the destruction of our planet, you are more likely to be arrested in Britain than anywhere else in the world. www.theguardian.com/environment/...

Britain leads the world in cracking down on climate activism, study finds

Research shows UK police arrest environmental and climate protesters at three times the average global rate

theguardian.com

CMU is hosting the 2025 Progic Conference on combining probability and logic. This year's focus: Theoretical Approaches to Learning and Learnability Deadline for abstracts is December 15. I cannot derive your probability of getting in, but you should submit anyway :) www.cmu.edu/progic2025/c...

Here's a start to a mathematical philosophers starter pack. I'm having a hard time keeping track of who is here these days. Apologies if I missed you. Let me know if you want to be added or removed, or if you know anyone else who should be on here.

I'm trying to put together a history and philosophy of biology and medicine starter pack! Let me know who to add, including if that is you! go.bsky.app/UCbEmtj

SciSci starter packs! Adding a second starter pack here since we ran out of capacity with the first one: go.bsky.app/NeZvnb5 The first one can be found here: go.bsky.app/2R1E4TD Please nominate or self-nominate with an example work. Please share! #AcademicSky #SciSci #SciPol #metascience