Seth Bannon
Founding Partner, Fifty Years · 1 appearance on the record.
computed by AI from the episodes · how this works → · full disclaimer →
investorfounder@sethbannon ↗LinkedIn ↗fiftyyears.com ↗
Seth Bannon co-founded Fifty Years, a seed-stage venture fund backing deep tech startups solving critical global issues across synthetic biology, climate, and frontier technology. A Y Combinator alumnus who previously founded Amicus, he has seeded companies including Solugen, Astranis, Upside Foods, and Substack.
3 supported 1 partly supported 0 contradicted 1 not yet assessed 2 not checkable as stated how the 7 claims stand · each chip opens the sources
2 predictions · 5 assertions · 5 opinions · 2 insights · 1 disclosure · every statement was checked. The predictions and assertions are the 7 claims: statements the public record can support or contradict. 4 are resolved, 1 is not yet assessed, and 2 name 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 Seth 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 31 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? →
242 words/min while actually speaking · 6.3 um and uh per 1k words
Measured by listening to the audio itself: 4,907 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 Seth Bannon 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: Seth Bannon's own voice is left out of every number here. Other people bring the name up 8 times in 7 episodes on 20VC. 1 statement on the record names them. every mention, with the transcript →
Who brings them up most Harry Stebbings 2Delian Asparouhov 2Chris Sacca 2Michael Ma 1Immad Akhund 1
Statements about Seth Bannon, by other people (1)
Every mention by year
2025 1 mention in 1 episode
2024 2 mentions in 1 episode
2022 1 mention in 1 episode
2021 1 mention in 1 episode
2020 1 mention in 1 episode
2017 2 mentions in 2 episodes 1 per episode
- 20VC: Coinbase's Brian Armstrong on The Rise & Short Term Correction in ICOs, The Regulatory Framework Required For Blockchain To Succeed & How The Rise of Blockchain Disrupts The VC Industry
- 20VC: Why YC Is The Exact Opposite of Proprietary Deal Flow, Why Having No Follow On Dramatically Aligns Incentives & Why Founders Do Not Have To Be Passionate About Their Idea From The Start with Michael Ma, Founding Partner @ Liquid 2 Ventures
- every mention in 2017, scene by scene →
Appearances (1)
| Episode | Date | Speaking time |
|---|---|---|
| 20VC: Why We Will Continue To See An Explosion In Deep Tech Financing, Why Much of Silicon | Aug 7, 2017 | 21m |