I built a fun little Mac app called "Outer Loop". Download it at https://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.

I also wrote a blog post about its internals: "Web apps over SSH can be surprisingly good" https://probablymarcus.com/blocks/2025/10/10/web-apps-over-ssh-surprisingly-good.html

Claude Code's comments seem like satire.

Real example from Opus 4.1:
```
// Apply gray color (0.5, 0.5, 0.5) to the text
float3 grayColor = float3(0.5, 0.5, 0.5);
```

It's kinda adorable, clearly the transformer used the code comment to "think" about the next line.

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.

https://probablymarcus.com/blocks/2025/08/04/screens-break-your-smooth-pursuit.html

New post: The web could use machine code

If AI code generation is coming, then it's time to move away from the "write once, run everywhere" web.

https://probablymarcus.com/blocks/2025/06/08/the-web-could-use-machine-code.html

New blog post: "Expressions are Pragmatic Model Visualizations"

I show a practical approach to visualization:
1. Print visually-optimized code
2. Render parameters (or other useful scalars) inline

https://probablymarcus.com/blocks/2024/01/10/expressions-are-pragmatic-visualizations.html