johnx's Avatar

johnx

@johnx.co.bsky.social

Reluctant technologist, recurring student. I post about geospatial, exploration, music, and the decentralized web.

29 Followers  |  50 Following  |  25 Posts  |  Joined: 07.10.2024  |  2.0567

Latest posts by johnx.co on Bluesky

Post image

I've been working on dual citizenship for a while β€”Β trying to bridge geospatial data technologies and the decentralized web.

I gave a talk today at @foss4gna.bsky.social β€” here it is πŸ‘‡

✨ Astral: A Spatial Extension for the Decentralized Web

www.youtube.com/watch?v=o9CC...

04.11.2025 19:57 β€” πŸ‘ 2    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
Preview
Tom MacWright on Shutting down Placemark

As a person who resists the hubris and posturing so common in tech, I appreciated @macwright.com’s openness + honesty in this podcast.

As the solo founder of an open source geospatial project (and a Placemark user), I also found the content and insights invaluable.

πŸ™πŸ™πŸ™

pca.st/episode/703c...

05.10.2025 10:00 β€” πŸ‘ 2    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

This is where we’re at, I guess … the best minds of our generation, all the frantic madness, the resource and ingenuity, and this is the outcome.

The incentives are so strong – the pattern feels intractable. I’m reminded of Diogenes the Cynic.

02.10.2025 07:03 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
Preview
Notes on Location Proofs - John X An exploration of proof-of-location systems, their technical implementations, privacy implications, and potential applications in Web3 and beyond.

My work focuses on next-gen geospatial data technologies for the open internet.

Lately I’ve been researching proof-of-location systems with collaborators at UMD.

This new post outlines our current thinking about a new framework for multifactor location verification: www.x25bd.com/posts/notes-...

13.09.2025 09:30 β€” πŸ‘ 2    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

- Peer-to-peer data storage systems (what I sometimes call "spatial registries") offer interesting new ways of managing geospatial data.

One very interesting use case: self-sovereign policy zone management.
Another: content-addressed climate datasets.

Lots more to say on this ...

26.02.2025 12:03 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

- Verifiable geocomputation systems can similarly improve trust and reduce compliance costs.

I'm especially excited about how these two pillars can help us build systems to govern autonomous machines β€” including safeguarded AI.

www.lesswrong.com/posts/P8Xcbn...
twitter.com/soona/status...

26.02.2025 12:01 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0

You can dive into what I mean in the paper, but key highlights:

- Proof-of-location systems based on principles of self-sovereignty and verifiability can improve trust in location claims, with many knock on effects

26.02.2025 11:57 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0

I'll share here first β€” a collaborator and I have a vision paper on the decentralized geospatial web in review.

Preprint is available here:

Top line β€” the geospatial web works well, but there are a few places where Web3 design principles show promise to expanding what's possible.

osf.io/bg2uq_v1

26.02.2025 11:55 β€” πŸ‘ 2    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0

I just had a thought – maybe the opposite of perfect is honesty.

07.02.2025 11:43 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

I've been meaning to put pen to paper and write down what I've been learning over the past 6+ years, researching the intersection of geospatial + the decentralized web ...

This week it comes together β€”Β focused on location proofs, verifiable geocomputation and decentralized data storage. More soon.

28.01.2025 16:04 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 0    πŸ“Œ 1
Preview
How to be More Agentic On a supposedly difficult thing

My friend @leonebaron.bsky.social made me aware of this post from @cate.bsky.social β€” lots of great advice to channel.

Especially coming back to the roiling world of knowledge work in 2025 after burning out, I'm prioritizing good + durable habits.

usefulfictions.substack.com/p/how-to-be-...

27.01.2025 12:02 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
Preview
Thoughts on being mortal - Joe Carlsmith You can't keep any of it. The only thing to do is to give it away on purpose.

"your life is always flowing outwards, through you and away from you, into the world;"

joecarlsmith.com/2020/12/06/t...

27.01.2025 10:29 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
x.com

It's worth noting that Vincent Weisser is one of the OGs in DeSci (Molecule ecosystem), with a deep background in the design principles of decentralization.

x.com/vincentweisser

20.01.2025 16:20 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0
Preview
Training AI models might not need enormous data centres Eventually, models could be trained without any dedicated hardware at all

Did you see this article in the Economist last week?

I'm far from an expert on the pros and cons of different training designs, but at a glance decentralized (well, distributed) training offers quality improvements not in spite of, but *because of* inefficiencies.

www.economist.com/science-and-...

20.01.2025 16:17 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0
Retrospective β€” Deep Learning System Design - John X Reflections on MLX's Deep Learning System Design coding immersive.

... audio processing and more.

www.x25bd.com/posts/retros...

In 2025 I'll be doing research + product innovation using AI and Web3 tools and patterns. More to come ...

20.01.2025 16:13 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

... and next generation geospatial data infrastructure.

The last few months of 2024, I reconnected with my roots in data science β€” I went through an immersive program catching up on the latest developments in AI and machine learning. Vector embeddings, transformers, computer vision, MLOps ...

20.01.2025 16:11 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0

I've been interested in geospatial for a long time β€”Β my first brush with machine learning was in 2009, studying convolutional neural networks in a remote sensing course I took.

Since then I've worked on location-based apps, geospatial analysis pipelines, interactive map visualizations ...

20.01.2025 14:41 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0

But while I believe Web3 promotes and important set of design principles, I know it's not a panacea.

Before my foray into the space β€” and in the past year β€” I've spent a lot of time trying to understand, and to some extent shape, patterns of human behavior using geospatial data technologies.

20.01.2025 14:39 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0
Preview
Astral At Astral we are building tools to enable the location-based decentralized web

I'm still working in Web3 β€”Β I lead Astral, an open source R+D studio building tools + technologies for the decentralized geospatial web.

I'll share more about what we do in due course, I'd love to get feedback and critique here.

astral.global

20.01.2025 14:37 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0

About a year ago I left my full time role at Toucan (lots of reasons, mostly personal β€” I was burnt out). 2024 involved a lot of sense-making and tending to the things that tended to get de-prioritized while I was wrapped up in the "founder" lifestyle. Lots to say here β€” I'm biased towards openness.

20.01.2025 14:36 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0

Regarding work, I spent the past 5(ish) years at the frontier, looking at how emerging tech (especially Web3) could help us respond to the climate breakdown more effectively.

I have been deeply involved with @kernel0x.bsky.social, co-founded Toucan Protocol, co-chaired a WEF working group and more.

20.01.2025 14:34 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0

I grew up in the US and am an American, though I've spent the past 6+ years living in the UK, and just recently took steps towards dual citizenship.

I love the community spirit I experience in the US, and the extraordinary landscapes. In the UK (esp. London), it's the cultural and historical depth.

20.01.2025 14:29 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0

To say a bit more, I lead with where I have spent my time because my sense of place is core to how I experience the world.

Roots are early experiences exploring mountains + lakes in America. These days, I've expanded β€” most of my tech work incorporates "geospatial" in one way or another.

20.01.2025 14:27 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0

The requisite "hello new social platform" post β€”Β for those who don't (and do!) know me:

Hi. I'm John. I grew up in Colorado + live in London. My work centers around emerging (digital) technology and how it can improve lives + well-being. I love to snowboard, sail, + (slowly) make progress on piano.

20.01.2025 14:23 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0

It's as good a time as any to start speaking ...

20.01.2025 14:20 β€” πŸ‘ 3    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

@johnx.co is following 20 prominent accounts