Marcus Lewis
@probablymarcus.com
AI, programming, neuroscience. Previously UMichCSE, Microsoft, Numenta, now working on a better user/code interface for scientific computing
https://probablymarcus.com
https://probablymarcus.com
I built a fun little Mac app called "Outer Loop".
It's a specialized web browser that is aware of SSH. It's good at connecting to web apps running on private servers. Use it for Tensorboard, Jupyter, etc.
Download it at outerloop.sh
It's a specialized web browser that is aware of SSH. It's good at connecting to web apps running on private servers. Use it for Tensorboard, Jupyter, etc.
Download it at outerloop.sh
Outer Loop
Use web apps over SSH
outerloop.sh
October 20, 2025 at 4:00 PM
I built a fun little Mac app called "Outer Loop".
It's a specialized web browser that is aware of SSH. It's good at connecting to web apps running on private servers. Use it for Tensorboard, Jupyter, etc.
Download it at outerloop.sh
It's a specialized web browser that is aware of SSH. It's good at connecting to web apps running on private servers. Use it for Tensorboard, Jupyter, etc.
Download it at outerloop.sh
New blog post: "Smooth Pursuit, and how Screens Don't Mimic Reality"
Your brain makes clever use of smooth eye movements. This works in the real world, but it fails on screens.
probablymarcus.com/blocks/2025/...
Your brain makes clever use of smooth eye movements. This works in the real world, but it fails on screens.
probablymarcus.com/blocks/2025/...
Smooth Pursuit, and how Screens Don’t Mimic Reality
Marcus Lewis
probablymarcus.com
August 4, 2025 at 6:01 PM
New blog post: "Smooth Pursuit, and how Screens Don't Mimic Reality"
Your brain makes clever use of smooth eye movements. This works in the real world, but it fails on screens.
probablymarcus.com/blocks/2025/...
Your brain makes clever use of smooth eye movements. This works in the real world, but it fails on screens.
probablymarcus.com/blocks/2025/...
New post: The web could use machine code
probablymarcus.com/blocks/2025/...
If AI code generation is coming, then it's time to move away from the "write once, run everywhere" web.
probablymarcus.com/blocks/2025/...
If AI code generation is coming, then it's time to move away from the "write once, run everywhere" web.
The web could use machine code
Marcus Lewis
probablymarcus.com
June 13, 2025 at 3:43 PM
New post: The web could use machine code
probablymarcus.com/blocks/2025/...
If AI code generation is coming, then it's time to move away from the "write once, run everywhere" web.
probablymarcus.com/blocks/2025/...
If AI code generation is coming, then it's time to move away from the "write once, run everywhere" web.
New blog post. I tried something new, got good results, and learned some surprising nuances of GPU programming.
probablymarcus.com/blocks/2023/...
probablymarcus.com/blocks/2023/...
What happens when you vectorize wide PyTorch expressions?
Marcus Lewis
probablymarcus.com
October 24, 2023 at 3:49 PM
New blog post. I tried something new, got good results, and learned some surprising nuances of GPU programming.
probablymarcus.com/blocks/2023/...
probablymarcus.com/blocks/2023/...
Just realized that 4 of my last 5 blog posts end with variations on the same idea. Apparently I'm on team "Give people tools that encourage them to become experts"
October 21, 2023 at 5:45 PM
Just realized that 4 of my last 5 blog posts end with variations on the same idea. Apparently I'm on team "Give people tools that encourage them to become experts"