Karpathy posted one line last week that changed how I use Claude:
"Audio is the best input to AI.
Vision is the best output from it."
I tested it on the next plan.md Claude handed me.
Never going back.
Here's what was happening before:
For months, Claude would hand me a 200-line markdown plan for a feature.
I'd scroll to the bottom.
Type "looks good."
Ship code I never actually read.
but I know I'm not the only one doing this.
Then I switched the same plan to HTML output.
Same model. Same prompt. Different format.
And I actually read the whole thing.
I caught the gaps.
Pushed back on weird design choices.
Spotted three things that would've broken in production.
Karpathy's full frame is sharp:
→ A third of your brain is dedicated to visual processing
→ It's a 10-lane superhighway into your head
→ Markdown rides a bicycle on it
Since that post, every major plan, every feature spec, every report on my current client build → HTML, not markdown.
Try this on your next Claude session:
"Structure this as a single self-contained HTML file. Open it in the browser."
You'll catch things you would've nodded through in markdown.
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3 comments
Pratik Kadam
4
Karpathy posted one line last week that changed how I use Claude:
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