Dai Vaughan
banner
daivaughan.uk
Dai Vaughan
@daivaughan.uk
Geek. Cymru. Digital technology specialist. Consulting Practice CTO at Public Digital. Independent Member for Digital at Aneurin Bevan University Health Board. Co-founder of GDS. Views my own.
Reposted by Dai Vaughan
Yes: we spent unfathomable millions on a bridge to nowhere because process forced us to. But we also spent £100m on an unusable prison because of recklessness about process. State capacity is not a problem that bold leadership will magically resolve.

open.substack.com/pub/howtorun...
How to afford the state we want
State effectiveness and state capacity are not the same thing
open.substack.com
January 11, 2026 at 7:31 AM
Reposted by Dai Vaughan
Reposted by Dai Vaughan
For devolution watchers or those with a more recent (and perhaps fleeting) interest in this year’s Senedd election, this is an interesting read from @willhaycardiff.bsky.social on Welsh Labour’s election strategy #senedd #devolution
Exclusive: Welsh Labour’s election plan leaked
We have obtained Eluned Morgan’s plan for the 2026 election
open.substack.com
January 8, 2026 at 7:30 PM
In Govilon it’s raining, but ~2 mins drive away this was happening…
January 8, 2026 at 9:22 PM
Reposted by Dai Vaughan
The latest advice from Monmouthshire Council #StormGoretti
January 8, 2026 at 6:38 PM
Reposted by Dai Vaughan
Freezing cold on the side of a mountain to see in the new year.

No I don’t know why either.
December 31, 2025 at 11:32 PM
A very personal year note from me. 2025 has been a difficult year - navigating burn out and loss. Forcing a pause, a lot of reflection, and a much-needed re-evalation of how I work and who I am.
dafyddvaughan.uk/blog/2025/20...
2025 year note
2025 has been a difficult year. It was a year that forced me to pause, reflect, and eventually reach a much better understanding of how my own brain works.
dafyddvaughan.uk
December 30, 2025 at 8:13 PM
Reposted by Dai Vaughan
For those interested, raw data download is here along with some basic cross tabs: github.com/jaclarner/Ca...
December 17, 2025 at 9:24 AM
Reposted by Dai Vaughan
The media is constantly trying to push the angle that young people, particularly young men, are about to go, if not already going, fascist and young folk refute that every time at every juncture. I've got more time for them than any other demographic by a full country mile.
Young people love Plaid and hate Reform

There has been a lot of talk about Reform being really effective at reaching young people.

However this polling suggests that just 5% of those aged 18 - 24 would vote for them.
December 17, 2025 at 8:37 AM
Reposted by Dai Vaughan
New 🏴󠁧󠁢󠁷󠁬󠁳󠁿 data paints picture of consolidation within two blocs: a Welsh-identifying/progressive bloc (with Plaid as largest party) and a British-identifying/conservative bloc (with Reform as largest).

Adds to evidence that 2026 is shaping up to be 2-horse race between Plaid Cymru and Reform UK 🧵
December 17, 2025 at 8:16 AM
Reposted by Dai Vaughan
Excellent work > "If discovery now shapes small-business survival, then competition, fairness, and urban regeneration can no longer ignore platform ranking systems."

laurenleek.substack.com/p/how-google...
How Google Maps quietly allocates survival across London’s restaurants - and how I built a dashboard to see through it
I wanted a dinner recommendation and got a research agenda instead. Using 13000+ restaurants, I rebuild its ratings with machine learning and map how algorithmic visibility actually distributes power.
laurenleek.substack.com
December 10, 2025 at 4:59 AM
Reposted by Dai Vaughan
🚨Airbus has just confirmed to me that this issue does indeed relate to single-event upsets, also known as bit flips🚨
This is pretty massive.

There is scant detail so far but they say "solar radiation" has caused problems for some aircraft.

This *could* be related to single-event upsets, where cosmic rays trigger computer errors. I've asked Airbus if they can share more detail.

www.bbc.co.uk/news/live/cv...
Flight disruption warning as Airbus requests modifications to 6,000 planes
The European aerospace giant said it had found that intense radiation from the Sun could corrupt data crucial to flight controls.
www.bbc.co.uk
November 28, 2025 at 10:07 PM
Interesting thread. Concludes with this issues being related to corrupted bits caused by solar radiation.
This is pretty massive.

There is scant detail so far but they say "solar radiation" has caused problems for some aircraft.

This *could* be related to single-event upsets, where cosmic rays trigger computer errors. I've asked Airbus if they can share more detail.

www.bbc.co.uk/news/live/cv...
Flight disruption warning as Airbus requests modifications to 6,000 planes
The European aerospace giant said it had found that intense radiation from the Sun could corrupt data crucial to flight controls.
www.bbc.co.uk
November 28, 2025 at 11:44 PM
Reposted by Dai Vaughan
This is pretty massive.

There is scant detail so far but they say "solar radiation" has caused problems for some aircraft.

This *could* be related to single-event upsets, where cosmic rays trigger computer errors. I've asked Airbus if they can share more detail.

www.bbc.co.uk/news/live/cv...
Flight disruption warning as Airbus requests modifications to 6,000 planes
The European aerospace giant said it had found that intense radiation from the Sun could corrupt data crucial to flight controls.
www.bbc.co.uk
November 28, 2025 at 8:48 PM
Reposted by Dai Vaughan
🚨 NEW: 'FROZEN 2': 🧊 Here's the Wales Fiscal Analysis team's first breakdown on what the 2025 Autumn Budget means for Wales

🚨NEWYDD: Beth mae Cyllideb y Hydref 2025 yn ei olygu i Gymru? Dyma ddadansoddiad cyntaf o'r newidiadau sydd ar y ffordd

blogs.cardiff.ac.uk/thinking-wal...
Frozen 2: Tax Freezes, the 2-Child Limit (and what the 2025 Autumn Budget means for Wales)
Showcasing current research, comments and analysis on the law, politics, history, culture, government and political economy of Wales from the Wales Governance Centre.
blogs.cardiff.ac.uk
November 27, 2025 at 12:23 PM
Reposted by Dai Vaughan
I also write about how little the floods have been covered in national newspapers, and how appalled I am that the Prime Minister has said nothing to the people of Monmouthshire directly. Please read and share. www.thenerve.news/p/storm-clau...
Storm Claudia puts Wales under water – why did these record-breaking floods barely make the news?
On the frontline of a deluge on the Welsh borders, Jude Rogers heard local stories of devastation and heroism – but incredibly the disaster was hardly referred to in Westminster and the national press
www.thenerve.news
November 22, 2025 at 4:51 PM
Reposted by Dai Vaughan
Last Friday night and Saturday morning, Monmouthshire was hit by devastating floods. Monmouth’s high street, a place that I’ve barely known wet before, became a high roaring river (see the pictures of how it lies normally, as it did on Thursday, with the flooded Waitrose high above).
November 22, 2025 at 4:41 PM
Reposted by Dai Vaughan
A huge thank you to Steph, Penny, @mhwauben.bsky.social & Michelle for a pre-Christmas cracker of a Data Bites @publicdigital.bsky.social last night

Watch back bit.ly/databites60

& check out the new StatsWales, the new Stats Code of Practice, the Data for London Library & the Census consultation!
Join Slido: Enter #code to vote and ask questions
Participate in a live poll, quiz or Q&A. No login required.
bit.ly
November 19, 2025 at 11:49 AM
Reposted by Dai Vaughan
South Wales Fire and Rescue declared a major incident in Monmouth in the early hours of Saturday.
Major incident declared as Storm Claudia fallout continues
www.standard.co.uk
November 15, 2025 at 5:54 AM
Reposted by Dai Vaughan
Oh god.

[we are okay]

This is hugely upsetting.
November 15, 2025 at 7:41 AM
A bit of a holiday rant...

We need to stop designing "target architectures." They're a fantasy. A waste of money.

An approach that forces decisions too early, kills speed, and guarantees you'll never fix legacy tech.

A utopian plan that's an anchor, not a map.

dafyddvaughan.uk/blog/2025/th...
The bridge to nowhere: Why your ‘Target Architecture' won’t ever deliver
Stop funding fictional target architecture blueprints and start funding empowered, long-lived teams. The traditional, rigid approach is too slow for the age of AI and will never solve your real-world ...
dafyddvaughan.uk
November 3, 2025 at 10:31 AM
Reposted by Dai Vaughan
New post on the Transform Wales blog from @niacampbell.bsky.social.

We've learned the language of digital in Wales - agile, user-centred, transformation. Now it's time to learn how to live it.

transform.wales/blog/2025/pr...
October 27, 2025 at 3:18 PM
Reposted by Dai Vaughan
A huge thank you to Simon @metoffice.gov.uk, @elmosmoe.bsky.social @scottishaialliance.bsky.social, James from JDAC and Lauren from GIAA for a brilliant Data Bites AI special @publicdigital.bsky.social last night

Watch back as live (write up/audio/slides to follow) bit.ly/databites59
Data Bites #60 — Public Digital
public.digital
October 24, 2025 at 7:14 AM