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Marcel

@macelblattner.bsky.social

130 followers 310 following 60 posts

Physicist and terrible programmer. Independent Scientist. Astrophotographer.

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Marcel @macelblattner.bsky.social · Sep 19

Our new paper introduces Tangential Action Spaces (TAS), a geometric framework for understanding how embodied agents translate goals into physical actions.

arxiv.org/abs/2509.03399

Tangential Action Spaces: Geometry, Memory and Cost in Holonomic and Nonholonomic Agents

Living systems balance energetic efficiency with the capacity for path-dependent effects. We introduce Tangential Action Spaces (TAS), a geometric framework that models embodied agents as hierarchies ...

arxiv.org

Reposted by Marcel

Mike Levin @drmichaellevin.bsky.social · 8d

Here's a talk that's quite different from ones I've given before, although it has connections to everything I often talk about, presented at #alife2025:

thoughtforms.life/meet-a-new-s...

(downloadable slides link there too). 🧪

Forms of life, forms of mind | Dr. Michael Levin | Meet a new synthetic colleague: robot science as a translation tool between diverse intelligences

A video, and downloadable slides, of a presentation I gave on robot science and Xenobots at the 2025 Artificial Life meeting.

thoughtforms.life

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Marcel @macelblattner.bsky.social · Sep 19

You can find the fit repo here: github.com/marcelbtec/r...

GitHub - marcelbtec/rTAS

Contribute to marcelbtec/rTAS development by creating an account on GitHub.

github.com

Marcel @macelblattner.bsky.social · Sep 19

This work provides a new language for relating embodiment, energetic cost, and memory, with design implications for both robotics and biology.

#EmbodiedCognition #Robotics #AI #Geometry #CognitiveScience

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Marcel @macelblattner.bsky.social · Sep 19

We found a fundamental trade-off: the most energy-efficient action leaves no memory behind. Any action that creates a path-dependent memory trace inevitably requires extra energy, a principle we call the "cost-memory duality".

Marcel @macelblattner.bsky.social · Sep 19

Our new paper introduces Tangential Action Spaces (TAS), a geometric framework for understanding how embodied agents translate goals into physical actions.

arxiv.org/abs/2509.03399

Tangential Action Spaces: Geometry, Memory and Cost in Holonomic and Nonholonomic Agents

arxiv.org

Marcel @macelblattner.bsky.social · Aug 28

Experimenting with some of my astrophotos. Here is one. Sharpless sh2-119. Removed almost all stars and gave the nebula more breathing space and depth. #Astrophotography

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Marcel @macelblattner.bsky.social · Aug 27

@bot.astronomy.blue signup

Marcel @macelblattner.bsky.social · Aug 12

Sharpless 119, is a large patch of emission in the constellation Cygnus and lies some 2200 light years away. It’s only 2-3 degrees away from the North American and Pelican Nebulae, so is often overlooked.

#Astrophotography #Astrophoto #Photo

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Marcel @macelblattner.bsky.social · Aug 8

Tonight dancing with the stars ✨

Marcel @macelblattner.bsky.social · Aug 4

The fact that I get highly polarized reviews (paper submission) for a new idea tells me: I am on to something! I’ll continue to work even harder on that idea. #science

Marcel @macelblattner.bsky.social · Jul 6

The Western Veil Nebula NGC 6960 ✨

Capturing ancient stellar violence in the constellation Cygnus! This shows the aftermath of a massive star that exploded over 20,000 years ago.

Part of a larger mosaic project to capture the entire Cygnus Loop! 🌌

#Astrophotography #veilnebula

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Marcel @macelblattner.bsky.social · Jul 4

FSQ-106EDX4 with ZWO 2600 mm (Mono). 16x5’ Ha, OIII, SII each. 15x30” R,G,B each (for stars).

Marcel @macelblattner.bsky.social · Jul 3

My shot of the incredible Veil Nebula! ✨ It's the ghostly remnant of a star that exploded thousands of years ago. So much beauty in our universe.
#VeilNebula #Astrophotography #Space #Nebula #DeepSky #Cosmos #Stars #Telescope #Astrophoto

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Marcel @macelblattner.bsky.social · May 30

Getting ready to connect to the universe. #Astrophotography

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Marcel @macelblattner.bsky.social · May 24

Over synchronisation in complex networks. #complexnetworks

www.tangential.ch/experiments/...

tangential

www.tangential.ch

Marcel @macelblattner.bsky.social · May 14

Thanks for the great work!

Marcel @macelblattner.bsky.social · May 13

My latest experiment explores a somewhat different approach to PID control. By integrating neural networks, the system can dynamically adapt to changing conditions for improved performance. Learn more about the underlying concepts in the linked article. #AI

www.tangential.ch/experiments/...

tangential

www.tangential.ch

Marcel @macelblattner.bsky.social · May 13

#ALife. Submitted yesterday. Let’s see.

Marcel @macelblattner.bsky.social · May 5

Eigenvalues go crazy.

Marcel @macelblattner.bsky.social · Apr 30

Thanks!

Reposted by Marcel

ALIFE Conference 2025 @alife2025.bsky.social · Apr 11

Happy Friday! Here is a shiny new update for you.

🎊🎊 Our LaTex template just dropped! 🎊🎊

You can find it at 2025.alife.org

This template applies for Full Papers (≤ 8pages) & Summaries (≤ 3 pages)

Please prepare submissions using the template for a smooth submission process.

#ALIFE #ALIFE2025

ALIFE 2025: The Artificial Life Conference, 6-10 October, Kyoto, Japan

ALIFE 2025’s theme is 'Ciphers of Life', exploring the many ways that life encodes information, creates internal languages, and interacts in encrypted ways with its environment.

2025.alife.org

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Marcel @macelblattner.bsky.social · Mar 21

Weekend. Time for reflection. What can we know?

It’s one thing to see my images on a screen. It’s another thing to see it tangible on a print out (NGC 7000). The universe is awesome. Have a nice weekend.
#reflections #Astrophotography

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Marcel @macelblattner.bsky.social · Feb 27

After falling into a rabbit hole of numerical instabilities in my simulations, I finally found a way out. What an awful journey for the last few months. Peace now! Have a lovely evening.

Reposted by Marcel

Alyssa M Adams @alyssa-m-adams.bsky.social · Jan 9

Early career researchers, tech enthusiasts, students, and people with half-baked ideas are especially encouraged to join! DM me to sign up!

Cross Labs AI @crosslabsai.bsky.social · Jan 8

Join us for the 5th annual Cross Labs spring workshop, "New Human Interfaces"! www.crosslabs.org/new-human-in...

From March 3-7, we will be hosting panels by leading experts, a multi-day hackathon, and deep-dive discussions on new and unexplored innovative human-machine interface design.

New Human Interfaces | March 3–7, 2025 | Cross Labs AI

A hands-on exploration of new and unexplored human-machine interfaces. Leading researchers, technologists, and innovators from diverse disciplines to discuss the intersection of artificial intelligenc...

www.crosslabs.org

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Marcel @macelblattner.bsky.social · Feb 25

Thanks for sharing!