# .plan-26-06: Vivas, ARIA and interviews

*2026-02-08 — note*


## Vivaing

This week started off with my conducting the [PhD viva](https://mort.io/blog/phd-viva/) for [Madeline Lisaius](https://mlisaius.github.io/), which was a very enjoyable 4.5 hours of discussion with her and external examiner [Kevin Tansey](https://le.ac.uk/people/kevin-tansey) who came up from Leicester for the day. I can't comment on the result until it is officially ratified by the examiners board here, but you can judge for yourself from the expressions below how it went! Maddy is off to [Paris next](https://www.linkedin.com/feed/update/urn:li:activity:7427756948470665216/) for a new role working on CLAY2, and we will miss her here in Cambridge\!

<figure class="image-center"><img src="/images/maddy-viva-1.webp" alt="A happy Maddy and Kevin after a long viva. Photo credit: Simon Peyton Jones" title="A happy Maddy and Kevin after a long viva. Photo credit: Simon Peyton Jones" loading="lazy" srcset="/images/maddy-viva-1.768.webp 768w, /images/maddy-viva-1.640.webp 640w, /images/maddy-viva-1.480.webp 480w, /images/maddy-viva-1.3840.webp 3840w, /images/maddy-viva-1.320.webp 320w, /images/maddy-viva-1.2560.webp 2560w, /images/maddy-viva-1.1920.webp 1920w, /images/maddy-viva-1.1600.webp 1600w, /images/maddy-viva-1.1440.webp 1440w, /images/maddy-viva-1.1280.webp 1280w, /images/maddy-viva-1.1024.webp 1024w"><figcaption>A happy Maddy and Kevin after a long viva. Photo credit: Simon Peyton Jones</figcaption></figure>

## Talking at ARIA

After that I went to prepare for a big talk at [ARIA](https://aria.org.uk) after being invited by Ilan Gur from meeting him [a few months ago](https://anil.recoil.org/notes/principles-for-collective-knowledge). I went down with [Srinivasan Keshav](https://svr-sk818-web.cl.cam.ac.uk/keshav/wiki/index.php/Main_Page) and [Sadiq Jaffer](https://toao.com) and I gave the talk while Keshav demoed his increasingly brilliant [TESSERA Embeddings Explorer](https://github.com/sk818/TEE) and Sadiq showed off his [solar panel CNNs](https://toao.com/blog/earth-observation-budget-solar-farms-tiny-model) and predicting what would grow in the newest season of Clarkson's Farm (seriously, it works great).

<figure class="image-right-float"><img src="/images/aria-visit-2.webp" alt="Sadiq poses at ARIA!" title="Sadiq poses at ARIA!" loading="lazy" srcset="/images/aria-visit-2.768.webp 768w, /images/aria-visit-2.640.webp 640w, /images/aria-visit-2.480.webp 480w, /images/aria-visit-2.3840.webp 3840w, /images/aria-visit-2.320.webp 320w, /images/aria-visit-2.2560.webp 2560w, /images/aria-visit-2.1920.webp 1920w, /images/aria-visit-2.1600.webp 1600w, /images/aria-visit-2.1440.webp 1440w, /images/aria-visit-2.1280.webp 1280w, /images/aria-visit-2.1024.webp 1024w"><figcaption>Sadiq poses at ARIA!</figcaption></figure>
Many of the program directors were present, and I appreciated the chance to throw out some of the bleeding edge stuff we've being doing, and we got a lot of useful feedback and also excitement about usecases.  I gotta say I’m really digging the general sense of optimism and sense of momentum from all the ARIA staff I talk to. There’s a "can do" attitude that's sometimes been missing from the general discourse in the UK in recent years, and I greatly enjoyed all the discussions across programs.

<figure class="image-right-float"><img src="/images/aria-visit-1.webp" alt="" title="" loading="lazy" srcset="/images/aria-visit-1.768.webp 768w, /images/aria-visit-1.640.webp 640w, /images/aria-visit-1.480.webp 480w, /images/aria-visit-1.3840.webp 3840w, /images/aria-visit-1.320.webp 320w, /images/aria-visit-1.2560.webp 2560w, /images/aria-visit-1.1920.webp 1920w, /images/aria-visit-1.1600.webp 1600w, /images/aria-visit-1.1440.webp 1440w, /images/aria-visit-1.1280.webp 1280w, /images/aria-visit-1.1024.webp 1024w"><figcaption></figcaption></figure>
It was also delightful to see top functional programmer Kathleen Fisher there briefly (who is also their [new CEO](https://www.aria.org.uk/insights/introducing-our-next-ceo/)!.  On the train back, I also took the opportunity to refresh [Kathleen's wikipedia article](https://en.wikipedia.org/wiki/Kathleen_Fisher).

## Nature covers our conservation evidence conference

Nature sent along a reporter to the [Conservation evidence conference](https://anil.recoil.org/notes/red-pill-conservation) conference, and she published an [excellent piece in Nature](https://www.nature.com/articles/d41586-026-00309-1) on how biodiversity has an evidence problem and approaches to fix it (the latter being most important!).

> William Sutherland, a conservation scientist at the University of Cambridge
> who leads the Conservation Evidence project, says that his team is now
> deploying artificial intelligence to improve the speed and the thoroughness
> of the project's process. The ambition is for users to be able to interrogate
> the data set with a specially designed '[conservation chatbot](https://anil.recoil.org/projects/ce)', meaning
> practical questions would be answered with a narrative summary and links
> provided to sources of evidence. The data set would constantly be updated to
> take account of new studies and retractions, with humans overseeing the
> process. The concept is described in a [preprint](https://anil.recoil.org/papers/2025-evidence-tap) that was published last year.
> <cite>\-- [Biodiversity conservation has an evidence problem — it’s time to fix it](https://www.nature.com/articles/d41586-026-00309-1), 2025</cite>

## Parliamentary POST briefing

As another followup to the conference, I also got invited by [Stephanie Day](https://pml.ac.uk/profile/stephanie-day/) to give evidence to the the [Parliamentary Office of Science and Technology](https://en.wikipedia.org/wiki/Parliamentary_Office_of_Science_and_Technology) (POST). POST is an office of both Houses of Parliament, which provides independent and balanced analysis of research evidence related to public policy issues. We had a lively roundtable with a breadth of experts discussing the pros and cons of evidence-based approaches and data accessibility for both [open models](https://anil.recoil.org/notes/coar-prc) and also [conventional publishing](https://anil.recoil.org/notes/rs-future-of-publishing), and I'm sure this will make for a good briefing report when completed.

## Interviewed by the CACM

I've got an upcoming article (on the front cover!) of CACM, so [Dave Scott](https://dave.recoil.org) and I
were actually video interviewed in my office by a wonderful videographer [Rosie
Powell](https://www.rosiepowellfreelance.com/) who did the trek up three floors
of stairs with all her kit! More on the article itself when it's out in a few
weeks.  It was a set of good news for papers all around, with another article
accepted to Nature Communications as well after 5 (!) rounds of reviews and
probably over 100 pages of responses.

<figure class="image-center"><img src="/images/cacm-interview-1.webp" alt="Dave and I were interviewed separately in my office while staring at each other. Just like when we were at school." title="Dave and I were interviewed separately in my office while staring at each other. Just like when we were at school." loading="lazy" srcset="/images/cacm-interview-1.768.webp 768w, /images/cacm-interview-1.640.webp 640w, /images/cacm-interview-1.480.webp 480w, /images/cacm-interview-1.3840.webp 3840w, /images/cacm-interview-1.320.webp 320w, /images/cacm-interview-1.2560.webp 2560w, /images/cacm-interview-1.1920.webp 1920w, /images/cacm-interview-1.1600.webp 1600w, /images/cacm-interview-1.1440.webp 1440w, /images/cacm-interview-1.1280.webp 1280w, /images/cacm-interview-1.1024.webp 1024w"><figcaption>Dave and I were interviewed separately in my office while staring at each other. Just like when we were at school.</figcaption></figure>

## Storage storage storage

The week would also not be complete with doing more work on the TESSERA storage array. This time we were busy juggling machines to cope with the influx of embeddings from Vultr which are filling up storage at an alarming rate. There was a bit of drama last month when one of our [machines failed](https://www.tunbury.org/2026/01/13/pima-nvme/); while we didn't lose anything, it took a _long_ time to sync data back. Now, we're building a much more resilient [Ceph cluster](https://www.tunbury.org/2026/01/06/ceph-notes/) to avoid a dependency on any one host.

I also managed to do a lot of hacking on [oxmono](https://github.com/avsm/oxmono), including porting compression libraries like Brotli, Zstd and Snappy over to OxCaml in preparation for my pure OCaml Parquet implementation. OxCaml is pretty solid so far, although it's inscrutable enough due to being a moving target that Claude's a necessity to work through all the annotated interfaces.

## Next week

I've got a battery of meetings and followups from ARIA, including a bunch of biodiversity related meetings and also a storage array to fix up!&#9;I'm in Cambridge, although the wet and windy weather isn't inspiring to go out and do my running routine...

Fun links:
- I don't really understand the intricacies, but I'm very excited by [Jon Sterling](https://jonmsterling.com) working on [NewsDrawer](https://www.jonmsterling.com/2026-W06/) and seeing the mac UI come together.
Synopsis: PhD viva for Maddy, presenting TESSERA at ARIA, Nature covers the conservation evidence conference, giving evidence to Parliamentary POST, and a CACM interview.
Words: 902

Discussion:
- LinkedIn: <https://www.linkedin.com/posts/anilmadhavapeddy_delighted-to-give-a-talk-about-our-experiences-activity-7425255600407674880-P0y0>

## Related

- [A scorching CNG London during Climate Action Week](https://anil.recoil.org/notes/cng-london-2026) (note, 2026-06-24)
- [A Decade of Docker Containers on the CACM cover!](https://anil.recoil.org/notes/cacm-docker-cover) (note, 2026-02-24)
- [At the AI Impact Summit in Delhi: people, planet, progress](https://anil.recoil.org/notes/india-ai-summit) (note, 2026-02-21)
- [.plan-26-07: Storage, Lego, Echo, and the IUCN](https://anil.recoil.org/notes/2026w7) (note, 2026-02-15)
- [Discussing effective conservation with all the UK Chief Scientists](https://anil.recoil.org/notes/red-pill-conservation) (note, 2026-02-03)
- [Publish, Review, Curate to upend scholarly publishing](https://anil.recoil.org/notes/coar-prc) (note, 2025-12-08)
- [Four Ps for Building Massive Collective Knowledge Systems](https://anil.recoil.org/notes/principles-for-collective-knowledge) (note, 2025-11-23)
- [AI-assisted Living Evidence Databases for Conservation Science](https://anil.recoil.org/papers/2025-evidence-tap) (paper, 2025-10-01)
- [Royal Society's Future of Scientific Publishing meeting](https://anil.recoil.org/notes/rs-future-of-publishing) (note, 2025-07-14)
- [OxCaml Labs](https://anil.recoil.org/projects/oxcaml) (project, 2025-01-01)
- [Conservation Evidence Copilots](https://anil.recoil.org/projects/ce) (project, 2024-01-01)

---
Canonical: https://anil.recoil.org/notes/2026w6
Type: note
License: CC BY 4.0 <https://creativecommons.org/licenses/by/4.0/>
Tags: tessera, conservation, evidence, biodiversity, ocaml, oxcaml
