Joerg Rheinboldt, serial Investor, vc and starter, GP @heartfelt_vc, @betterplace_org, Board of Trustees: Berliner Stadtmission @EvUnterneh, tech enthusiast😀🚀
Joined April 2007
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553 Photos and videos
May 18
A company I co-founded once died of a single colour.
The spreadsheet ran mostly black with a steady drift of green. Then one dimension we had treated as ultra-predictable turned red. They cannot behave like this was said out loud more than once.
ALT Sarajevo, before Dinner, May 14th
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May 18
The reality you can't read in yourself is the reality you can't read in the company.
If you can't see what's in front of you, the question to ask first isn't what's wrong with the data. It's what would change about my picture of myself if I let the data in.
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May 18
Week 7 of Patterns x Principles — Reading the World You're Building. On envisioning reality, planning horizons, productive vs destructive distortion, and a thinking model from Chris Argyris that keeps coming back.
open.substack.com/pub/joerg/…
#PatternsAndPrinciples
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May 10
A team is built by people who know what they can do and are still trying to get better at it.
ALT Coworking Space, Thursday, with Elisa
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May 10
In teams, the slowest standard wins by default.
Shipping at 80% isn't "lower the bar." It's lowering the stakes per try so the team can keep trying and continue to build momentum.
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May 10
Week 6 of Patterns x Principles — what a team becomes. On how teams form, what shows up in the first conversation, why complementarity beats peak ability, and the sister-traps of freezing and execution theater.
open.substack.com/pub/joerg/…
#PatternsAndPrinciples
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May 5
"When is something ready to be released?"
The answer I always land on: never, and always.
ALT on the train to Berlin, end of April 2026
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May 5
There is a real version of staying still that is not freezing.
Moving closes options. Holding things open is sometimes the right move. The skill is calibration — and most of the people who build remarkable things are good at telling the difference.
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May 5
This week's Patterns x Principles — on momentum as a disposition, the catalogue of where it shows up before traction, when it becomes flow, and when there is no momentum and the move is to stop.
open.substack.com/pub/joerg/…
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Apr 24
A founder pulled up his org chart. Thirty positions. I thought: you need to hire like crazy.
He smiled. The purple ones are agents.
ALT The Purple Dots on the Org Chart. New Newsletter is out. Picture of me on a walk in an old town last Sunday.
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Apr 24
I realized I had been doing the same thing in my own work for months without ever thinking to put the agents on the org chart.
Lume, Darklume, Maya, Aiden, Amara, Elias, Sophia, Parallax. A Circle I had built without having the language for it.
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Apr 24
Week 4 of Patterns x Principles: hybrid organizations, qualified intuition, Centaur Chess, and a prompt to build your first perspective. open.substack.com/pub/joerg/…
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10 Aug 2025
The Complete ChatGPT-5 Review: 5 Real-World Tests and the Playbook to Use It Right, by @natebjones open.substack.com/pub/natesn…
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