David Heinemeier Hansson
David Heinemeier Hansson is the creator of Ruby on Rails and co-owner of 37signals, the company behind Basecamp and HEY. He writes about software development, business and technology.
- Videos
- 1
- Channels
- 1
- Topics
- 3
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Video topic coverage
Based on 1 reviewed video for David Heinemeier Hansson; compared with all 1320 public reviewed videos. Catalogue coverage, not expertise or speaking time.
Unmapped topics: 0 for this person; 1 in all videos. Scores cover mapped topics only.
- David Heinemeier Hansson (1 video; normalised to 100%)
- All videos (1320; normalised to 90%)
Blue coverage envelope joins covered points. Zero scores remain at the centre and in the values; crossings over other axes do not indicate coverage. Both plots retain the same ten axes. The blue person plot is proportionally normalised to a 100% maximum and the white baseline to 90%. Each plot uses its own scale, showing relative topic emphasis; the values below show actual coverage.
- Agents & workflows100%56.3%
- Coding & tools100%40%
- Models & learning0%46.6%
- Infrastructure & compute0%24.7%
- Research & evaluation0%42.8%
- Safety & security0%29.3%
- Business & productivity0%32.8%
- Creative & media0%7.3%
- Robotics & perception0%5.6%
- Society & policy0%21.4%
Topic attribution
Both datasets use the same explicit fractional topic memberships. For each video, only the strongest membership in each group counts. We average those values across distinct public reviewed videos, including untagged videos. The all-video baseline includes this person's videos. Both datasets come from the same active catalogue snapshot and are independent of filters and viewing history. Groups overlap, so percentages do not need to total 100. Weights describe topic membership, not measured speaking time or relationship confidence.
Topics associated with this person:
- AI Agents: Agents & workflows: 100%
- AI Coding: Coding & tools: 100%
- Software Engineering: Coding & tools: 100%
