John Henderson
Partner, Airtree Ventures · 1 appearance on the record.
computed by AI from the episodes · how this works → · full disclaimer →
investoroperatorexecutive@johnhenderson ↗LinkedIn ↗airtree.vc/team/john-henderson ↗
John Henderson is a Partner at venture firm Airtree Ventures. Previously, he served as Head of Business Development and Operations at Summly through its acquisition by Yahoo, and was a founding Principal at White Star Capital.
1 supported 2 partly supported 0 contradicted 1 not checkable as stated how the 4 claims stand · each chip opens the sources
1 prediction · 3 assertions · 2 insights · 1 disclosure · every statement was checked. The prediction and assertions are the 4 claims: statements the public record can support or contradict. 3 are resolved, and 1 names no date, number or outcome precise enough to check. Everything else (opinions, insights, what ifs, disclosures) can never be settled by the record, so it carries no assessment.
The record, in short
What the tape says about how John argues and how the claims held up. Everything they said, and everything said about them, is in the tabs below.
Expressed certainty vs assessment result
weighted support: a fully supported claim counts one, a partly supported claim counts half. Each filled bar is clickable and opens exactly those claims; "none yet" means nothing said at that certainty level has resolved yet
Argument clarity: do they answer the question? how? →
answered every one of 10 assessed questions directly
This is a score against a rubric. It is not a rank. Every host question → answer exchange is scored with names hidden on directness, coherence, precision and compression, 1–5 each, on meaning alone: disfluencies are ignored, and only raw unedited episodes count. This is the score that measures thought. Every scored exchange, scores shown → · The rubric and its checks →
How they sound: speaking style how? →
265 words/min while actually speaking · 21.9 um and uh per 1k words
Measured by listening to the audio itself: 3,326 words across 1 episode of raw-level tape, transcribed verbatim with every um and uh kept, each one attributed only where the alignment onto our timed stream is unambiguous. These are measurements of speaking style. We do not rank them: across this corpus, fluency and argument quality are nearly uncorrelated (ρ≈0.2), and smooth talking does not signal clear thinking. How it's measured →
How the interview went all their pushback → series average →
Across 1 rated episode:
Everything John Henderson said on 20VC that made the record, most notable first. Filter by type, assessment or year in the ledger →
The other half of the tape: John Henderson's own voice is left out of every number here. Other people bring the name up 13 times in 7 episodes on 20VC. every mention, with the transcript →
Who brings them up most Harry Stebbings 9Christian Hernandez 1
Every mention by year
2025 3 mentions in 1 episode
2019 2 mentions in 1 episode
2016 8 mentions in 5 episodes 2 per episode
- 20 VC: Philipp Moehring, Head of AngelList Europe on Scaling Seed Stage Funding and Why 500 Is Not Your Traditional VC
- 20VC: Christian Hernandez on The Importance of Mobile and The Relationship Between Growth vs Revenue
- 20VC: Dave Morin on Why Building A Fund Is Like A Company, Why Venture Is A Craft & The Journey To Establish Slow Ventures
- Index's Martin Mignot on Sourcing Rocketship Companies, Evaluating Founders and His Attitude Towards Risk At The Early Stage
- 20VC: Fred Destin @ Accel on Why Startups Fail & Founders Get Fired?
- every mention in 2016, scene by scene →
Appearances (1)
| Episode | Date | Speaking time |
|---|---|---|
| 20 VC 025: Finding the Right VC and The Evolution of Summly with John Henderson of White S | Apr 6, 2015 | 15m |