## Metadata - Author: [[brethorsting.com]] - Full Title:: Domain Expertise Has Always Been the Real Moat - Category:: #🗞️Articles - URL:: https://www.brethorsting.com/blog/2026/05/domain-expertise-has-always-been-the-real-moat/ - Read date:: [[2026-06-10]] ## Highlights > The code was a transcription of that understanding. Acquiring the understanding was the job. ([View Highlight](https://read.readwise.io/read/01ktnap6f364sw0fzjq1xwnh55)) > the binding constraint has moved from *can you build it* to *can you tell whether it’s right*. ([View Highlight](https://read.readwise.io/read/01ktnarrw5vf62705kfsrwhvxk)) > They know the correct outputs for a given set of inputs because they’ve spent ten years living in those inputs and outputs. Hand them an agent and they are startlingly effective, because the thing they’re missing, the ability to produce code, is exactly the thing the agent supplies. ([View Highlight](https://read.readwise.io/read/01ktnayvpf3qfm1ka51jkjzf41)) > Notice which way this cuts. Pre-agent, the engineer had a path the dispatcher didn’t: they could go learn the domain. Slowly, painfully, by shadowing experts and reading specs and getting things wrong in production, they would build the mental model and then they could build the system. That path was the whole career ladder in a lot of fields. The domain expert had no equivalent path, because learning to build reliable software is years of work they were never going to do. ([View Highlight](https://read.readwise.io/read/01ktnb0atdzj10m3h2gpchpqjw)) > So the most valuable person in this new world is the one who has both skills because they can verify at both layers. ([View Highlight](https://read.readwise.io/read/01ktnb2a4xvw3btyzhznj7dvph))