Ivo
@velitchkov.eu
Independent consultant, author, trainer.
Interested in social systems and knowledge graphs.
newsletter: https://www.linkandth.ink
website: https://velitchkov.eu
Interested in social systems and knowledge graphs.
newsletter: https://www.linkandth.ink
website: https://velitchkov.eu
Pinned
Ivo
@velitchkov.eu
· Aug 26
Containers All the Way Down
Containment pervades life, from life's own self-creation to the tools for storage and the tools for thought.
www.linkandth.ink
Containment, besides being the architecture of our material world, is a fundamental organizing principle of life, language, and thought. This first essay reviews all kinds of containers, from the living cell to the physical and metaphorical containers we create. www.linkandth.ink/p/containers...
And here are the slides kvistgaard.github.io/slides/query...
SPARQL queries talk a pattern language.
The patterns are at three zoom levels:
- Function
- Structure
- Ontology
SPARQL querying can be experienced as assembling LEGO blocks. And it is equally fun.
I'll talk about that today at the TED Together event, organised by the EU Publications Office
The patterns are at three zoom levels:
- Function
- Structure
- Ontology
SPARQL querying can be experienced as assembling LEGO blocks. And it is equally fun.
I'll talk about that today at the TED Together event, organised by the EU Publications Office
November 27, 2025 at 5:00 PM
And here are the slides kvistgaard.github.io/slides/query...
SPARQL queries talk a pattern language.
The patterns are at three zoom levels:
- Function
- Structure
- Ontology
SPARQL querying can be experienced as assembling LEGO blocks. And it is equally fun.
I'll talk about that today at the TED Together event, organised by the EU Publications Office
The patterns are at three zoom levels:
- Function
- Structure
- Ontology
SPARQL querying can be experienced as assembling LEGO blocks. And it is equally fun.
I'll talk about that today at the TED Together event, organised by the EU Publications Office
November 27, 2025 at 6:40 AM
SPARQL queries talk a pattern language.
The patterns are at three zoom levels:
- Function
- Structure
- Ontology
SPARQL querying can be experienced as assembling LEGO blocks. And it is equally fun.
I'll talk about that today at the TED Together event, organised by the EU Publications Office
The patterns are at three zoom levels:
- Function
- Structure
- Ontology
SPARQL querying can be experienced as assembling LEGO blocks. And it is equally fun.
I'll talk about that today at the TED Together event, organised by the EU Publications Office
We regard adolescence in the 10-19 age bracket, but a new research with a data from 4,216 brains of people between 0 and 90 years confirms what some of us (esp. among those having grown-up children) already suspected:
the bracket is 9-32.
www.nature.com/articles/s41...
the bracket is 9-32.
www.nature.com/articles/s41...
Topological turning points across the human lifespan - Nature Communications
Researchers discovered five phases of brain rewiring across the lifespan. The eras of childhood, adolescence, adulthood, early aging, and late aging each have characteristic rewiring of structural con...
www.nature.com
November 26, 2025 at 9:44 AM
We regard adolescence in the 10-19 age bracket, but a new research with a data from 4,216 brains of people between 0 and 90 years confirms what some of us (esp. among those having grown-up children) already suspected:
the bracket is 9-32.
www.nature.com/articles/s41...
the bracket is 9-32.
www.nature.com/articles/s41...
But things have evolved a bit recently
November 25, 2025 at 11:43 AM
But things have evolved a bit recently
Reposted by Ivo
This is EXACTLY how I imagined Franz Liszt's smile.
Like Mephisto about to offer Faust a bargain he can't refuse.
Like Mephisto about to offer Faust a bargain he can't refuse.
November 24, 2025 at 1:52 PM
This is EXACTLY how I imagined Franz Liszt's smile.
Like Mephisto about to offer Faust a bargain he can't refuse.
Like Mephisto about to offer Faust a bargain he can't refuse.
It was inspired by something I found in a 6th-century book, and this sketch I made in my notebook
November 24, 2025 at 1:49 PM
It was inspired by something I found in a 6th-century book, and this sketch I made in my notebook
Working on the 10th post in the Autonomy and Cohesion series.
It will be about norms, one of the cohesion mechanisms listed in Cohesion Forces and Tools.
It will be about norms, one of the cohesion mechanisms listed in Cohesion Forces and Tools.
November 24, 2025 at 1:47 PM
Working on the 10th post in the Autonomy and Cohesion series.
It will be about norms, one of the cohesion mechanisms listed in Cohesion Forces and Tools.
It will be about norms, one of the cohesion mechanisms listed in Cohesion Forces and Tools.
his review more or less fine www.theguardian.com/stage/2025/o...
November 24, 2025 at 1:38 PM
his review more or less fine www.theguardian.com/stage/2025/o...
The 10th post in the Autonomy and Cohesion series will be about norms, following up on one of the cohesion mechanism mentioned in 👇
What do meetings, cat photos on social media and talking about the weather have in common?
Cohesion Forces and Tools
Cohesion technologies can vary widely. For a party, it can be the style of music or the agreed dress code; in organizations, cohesion is achieved with goals, plans, decisions, reports, and meetings; o...
www.linkandth.ink
November 24, 2025 at 10:52 AM
The 10th post in the Autonomy and Cohesion series will be about norms, following up on one of the cohesion mechanism mentioned in 👇
At Donmar Theatre, London, waiting to watch "Maids".
This didn't go through since there was no connection, so I'm posting it after, and I can recommend this production highly enough.
This didn't go through since there was no connection, so I'm posting it after, and I can recommend this production highly enough.
November 22, 2025 at 10:17 PM
At Donmar Theatre, London, waiting to watch "Maids".
This didn't go through since there was no connection, so I'm posting it after, and I can recommend this production highly enough.
This didn't go through since there was no connection, so I'm posting it after, and I can recommend this production highly enough.
I finally had the chance to visit the renovated Battersea Power Station in London. Well done.
(I guess that Pink Floyd album cover made so famous.)
en.wikipedia.org/wiki/Batters...
(I guess that Pink Floyd album cover made so famous.)
en.wikipedia.org/wiki/Batters...
November 22, 2025 at 12:01 PM
I finally had the chance to visit the renovated Battersea Power Station in London. Well done.
(I guess that Pink Floyd album cover made so famous.)
en.wikipedia.org/wiki/Batters...
(I guess that Pink Floyd album cover made so famous.)
en.wikipedia.org/wiki/Batters...
November 20, 2025 at 10:02 AM
Tired of the LLM noise? Let’s shift attention to something fully deterministic – rules running over a knowledge graph.
(now on the plane to London)
#SHACL #SPARQL
2025.connected-data.london/talks/rules-...
(now on the plane to London)
#SHACL #SPARQL
2025.connected-data.london/talks/rules-...
Connected Data London 2025
A Talk by Ivo Velitchkov
2025.connected-data.london
November 20, 2025 at 9:57 AM
Tired of the LLM noise? Let’s shift attention to something fully deterministic – rules running over a knowledge graph.
(now on the plane to London)
#SHACL #SPARQL
2025.connected-data.london/talks/rules-...
(now on the plane to London)
#SHACL #SPARQL
2025.connected-data.london/talks/rules-...
#SPARQL query patterns can be seen at 3 zoom levels: function, structure, ontology.
Within the function level, there are 3 categories of patterns: selectors, extractors, and aggregators. So every query can be assembled from LEGO blocks snapping at the same variables. More on that in a week.
Within the function level, there are 3 categories of patterns: selectors, extractors, and aggregators. So every query can be assembled from LEGO blocks snapping at the same variables. More on that in a week.
November 19, 2025 at 4:01 PM
#SPARQL query patterns can be seen at 3 zoom levels: function, structure, ontology.
Within the function level, there are 3 categories of patterns: selectors, extractors, and aggregators. So every query can be assembled from LEGO blocks snapping at the same variables. More on that in a week.
Within the function level, there are 3 categories of patterns: selectors, extractors, and aggregators. So every query can be assembled from LEGO blocks snapping at the same variables. More on that in a week.
I have reviewed many #SHACL shape graphs over the last few years. There are some error patterns as well as exotic errors. And recently, I've noticed some very different patterns of LLM-generated errors. 🧵
November 13, 2025 at 4:01 PM
I have reviewed many #SHACL shape graphs over the last few years. There are some error patterns as well as exotic errors. And recently, I've noticed some very different patterns of LLM-generated errors. 🧵
Every piece of non-fiction makes three claims: main, supporting, and meta. Each is shaped by bias — self-serving, confirmation, appeal-to-authority.
But there are quieter ones too: the elegance bias and the God’s-eye-view bias.
And then there are the meta-claims…
www.linkandth.ink/p/the-claims...
But there are quieter ones too: the elegance bias and the God’s-eye-view bias.
And then there are the meta-claims…
www.linkandth.ink/p/the-claims...
The Claims Matrix
God, Beauty, and the Attribution Paradox
www.linkandth.ink
November 11, 2025 at 4:41 PM
Every piece of non-fiction makes three claims: main, supporting, and meta. Each is shaped by bias — self-serving, confirmation, appeal-to-authority.
But there are quieter ones too: the elegance bias and the God’s-eye-view bias.
And then there are the meta-claims…
www.linkandth.ink/p/the-claims...
But there are quieter ones too: the elegance bias and the God’s-eye-view bias.
And then there are the meta-claims…
www.linkandth.ink/p/the-claims...
Viability as a Temporal Process link.springer.com/article/10.1...
Viability as a Temporal Process: Experiential and Operational Time from Bergson to Beer - Philosophy of Management
This article addresses a conceptual omission in organisational cybernetics: the absence of a temporal criterion for viability. While Stafford Beer’s Viable System Model (VSM) defines viability as a…
link.springer.com
November 11, 2025 at 9:27 AM
Viability as a Temporal Process link.springer.com/article/10.1...
Infinité
Airelle Besson, Edouard Ferlet, Stéphane Kerecki · Aïrés · Song · 2017
open.spotify.com
November 8, 2025 at 6:34 AM
Atlas Press (@atlaspress) substack.com/@atlaspress/...
Atlas Press (@atlaspress)
6000 Years of World History in 1 Picture
substack.com
November 7, 2025 at 9:36 PM
Atlas Press (@atlaspress) substack.com/@atlaspress/...
Link&Think has a new look. 💄
www.linkandth.ink
www.linkandth.ink
Link & Think | Ivo Velitchkov | Substack
Notes on systems and technologies. Click to read Link & Think, by Ivo Velitchkov, a Substack publication with hundreds of subscribers.
www.linkandth.ink
November 4, 2025 at 4:14 PM
Link&Think has a new look. 💄
www.linkandth.ink
www.linkandth.ink
Circular economy, redefined.
November 4, 2025 at 8:01 AM
Circular economy, redefined.