Bijan Sabet

Co-founder & Partner Emeritus, Spark Capital · 1 appearance on the record.

computed by AI from the episodes · how this works → · full disclaimer →

investorfounderpoliticianexecutive@bijan ↗bijansabet.com ↗Wikipedia ↗

Bijan Sabet co-founded venture capital firm Spark Capital in 2005, leading early investments in companies such as Twitter, Tumblr, and Foursquare. He later served as the United States Ambassador to the Czech Republic from 2023 to 2025.

15statements → 3claims → 2claims resolved → 3.73/5average certainty → 2.13/5average debate potential → 4.2/5argument clarity · the sources → 29said about them ↓

1 supported 1 partly supported 0 contradicted 1 not checkable as stated how the 3 claims stand · each chip opens the sources

1 prediction · 2 assertions · 6 opinions · 4 insights · 2 disclosures · every statement was checked. The prediction and assertions are the 3 claims: statements the public record can support or contradict. 2 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 Bijan argues and how the claims held up. Everything they said, and everything said about them, is in the tabs below.

Their most notable supported claim

Assertion Supported

Twitter had under 250,000 daily active users when Spark Capital invested

“There was less than 250,000 daily active users.”

Bijan Sabet Jun 6, 2016 ▶ 7:57 20VC: Spark's Bijan Sabet on Investing in Twitter, Tumblr and Foursquare & Why First Time Founders Are So Exciting

Argument clarity: do they answer the question? how? →

4.2 / 5 directness 4.1 · coherence 4.4 · precision 4.1 · compression 3.6

redirected or did not address 1 of 18 assessed questions (6%). Watch them ▸

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? →

262 words/min while actually speaking · 21 um and uh per 1k words

Measured by listening to the audio itself: 3,622 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:

host pushback ▾ 2/10

pushed back at the host ▾ 3/10

setup questions received 70%

host pushback: the hardest questions Harry asked, tap to play ▶ 13:15“Is personal growth a strong determinant to you, or do they need to be market ready from the get go, Do you think?” ▶ 16:07“So how do you respond to Fred Wilson's consumer downturn post?”

when Bijan pushed back ▶ 13:20“I don't think anyone's market ready from the get go. I think it's a, it's a flawed assumption with VCs where they try to imagine that, that these first time founders or any founder…” ▶ 22:12“this may not be what you're looking for, but I, I think, uh, people should be less interested in, like, what's the hot thing right now, and, and more about, uh, You know, what is r…”

What they said15 What others said29 Episodes1

Everything Bijan Sabet said on 20VC that made the record, most notable first. Filter by type, assessment or year in the ledger →

Insight

VCs wrongly expect first-time founders to be market-ready immediately

“I don't think anyone's market ready from the get go. I think it's a flawed assumption with VCs where they try to imagine that, that these first time founders or any founders are going to just figure it all out.”

Bijan Sabet Jun 6, 2016 ▶ 13:21 20VC: Spark's Bijan Sabet on Investing in Twitter, Tumblr and Foursquare & Why First Time Founders Are So Exciting

Prediction Not checkable as stated

A new breakout consumer mobile company will emerge in 2016 or 2017

“If history is a guide, you know, this year, next year, we're going to see a breakout in a brand new company.”

Bijan Sabet Jun 6, 2016 ▶ 17:15 20VC: Spark's Bijan Sabet on Investing in Twitter, Tumblr and Foursquare & Why First Time Founders Are So Exciting

Insight

Startups needing under $2M in deficit financing should not raise VC

“I think if your company needs probably, you know, less than a million or two million dollars of deficit financing to accomplish the mission, You know, you shouldn't raise venture capital for that.”

Bijan Sabet Jun 6, 2016 ▶ 19:08 20VC: Spark's Bijan Sabet on Investing in Twitter, Tumblr and Foursquare & Why First Time Founders Are So Exciting

Insight

First-time founders possess a unique audacity and fearlessness

“I think first time founders have a level of audacity that, you know, sometimes more experienced people don't have because they, they're just, there's no fear.”

Bijan Sabet Jun 6, 2016 ▶ 5:25 20VC: Spark's Bijan Sabet on Investing in Twitter, Tumblr and Foursquare & Why First Time Founders Are So Exciting

Insight

Founder vision and instincts matter more than academic pedigree

“And I also, I've just never bought into this kind of elitist way of thinking about like where you went to school You know, where you work, you know, whether you work at Google or, you know, Apple or something, it's more of, you know, what's your idea? What, wh…”

Bijan Sabet Jun 6, 2016 ▶ 5:54 20VC: Spark's Bijan Sabet on Investing in Twitter, Tumblr and Foursquare & Why First Time Founders Are So Exciting

Opinion

Bijan Sabet favors VR over AR as an investment sector

“Yes. I mean, yes. If I have to pick one, I pick VR over AR, but AR, AR is certainly interesting.”

Bijan Sabet Jun 6, 2016 ▶ 20:25 20VC: Spark's Bijan Sabet on Investing in Twitter, Tumblr and Foursquare & Why First Time Founders Are So Exciting

Opinion

Investing in post-bubble consumer tech was non-obvious in the mid-2000s

“The idea of backing entrepreneurs that were first-time entrepreneurs after the bubble burst in consumer, you know, right now it seems very obvious, but I can tell you at the time, it wasn't obvious.”

Bijan Sabet Jun 6, 2016 ▶ 4:33 20VC: Spark's Bijan Sabet on Investing in Twitter, Tumblr and Foursquare & Why First Time Founders Are So Exciting

Assertion Supported

Twitter had under 250,000 daily active users when Spark Capital invested

“There was less than 250,000 daily active users.”

Bijan Sabet Jun 6, 2016 ▶ 7:57 20VC: Spark's Bijan Sabet on Investing in Twitter, Tumblr and Foursquare & Why First Time Founders Are So Exciting

Opinion

No other platform matches Twitter's viral retweet distribution model

“This is a very unique distribution platform where things like retweets and things like that can take a piece of content or information and spread it in a way that no other platform, you know, could do or at the time, certainly, and even today, I don't think ot…”

Bijan Sabet Jun 6, 2016 ▶ 9:46 20VC: Spark's Bijan Sabet on Investing in Twitter, Tumblr and Foursquare & Why First Time Founders Are So Exciting

Opinion

David Karp became a great CEO after hiring Derek Godfrey

“David Karp's CEO chops went from good to great when he brought in Derek Godfrey to run engineering.”

Bijan Sabet Jun 6, 2016 ▶ 12:45 20VC: Spark's Bijan Sabet on Investing in Twitter, Tumblr and Foursquare & Why First Time Founders Are So Exciting

Opinion

Facebook is more likely to acquire breakout products than build them

“There's a higher chance that there's a breakout that Facebook wants to buy than Facebook creates themselves.”

Bijan Sabet Jun 6, 2016 ▶ 17:58 20VC: Spark's Bijan Sabet on Investing in Twitter, Tumblr and Foursquare & Why First Time Founders Are So Exciting

Opinion

Google offers enormous utility but is not a fun product

“Google has enormous utility, but I don't think Google's was, is a fun product.”

Bijan Sabet Jun 6, 2016 ▶ 7:05 20VC: Spark's Bijan Sabet on Investing in Twitter, Tumblr and Foursquare & Why First Time Founders Are So Exciting

Assertion Partly supported

Tumblr operated with just two employees for its first two years

“David Karp, you know, 19, he starts Tumblr, and him and another fellow named Marco Arment, you know, for two years, just two of them were working on it, and they had the ability just to focus on the product.”

Bijan Sabet Jun 6, 2016 ▶ 10:44 20VC: Spark's Bijan Sabet on Investing in Twitter, Tumblr and Foursquare & Why First Time Founders Are So Exciting

Disclosure

Spark Capital was the first investor in Oculus

“We're the first investor in Oculus”

Bijan Sabet Jun 6, 2016 ▶ 14:42 20VC: Spark's Bijan Sabet on Investing in Twitter, Tumblr and Foursquare & Why First Time Founders Are So Exciting

Disclosure

Bijan Sabet makes only one to two new investments annually

“I don't make a lot of investments. I make one to two new investments a year.”

Bijan Sabet Jun 6, 2016 ▶ 22:56 20VC: Spark's Bijan Sabet on Investing in Twitter, Tumblr and Foursquare & Why First Time Founders Are So Exciting

The other half of the tape: Bijan Sabet's own voice is left out of every number here. Other people bring the name up 27 times in 9 episodes on 20VC. 2 statements on the record name them. every mention, with the transcript →

Who brings them up most Nabeel Hyatt 12 Harry Stebbings 6 Kevin Thau 4 Fred Destin 2 Peter Rojas 1 Mo Koyfman 1 Katie Stanton 1

Statements about Bijan Sabet, by other people (2)

Assertion Supported

Bijan Sabet's Twitter Series B Catapulted Spark Capital Into Top Tier

“As I was joining Spark, Bijan Sabat at Spark led Twitter series B and that investment catapulted us into the upper echelon of VC firms.”

Mo Koyfman Aug 8, 2022 ▶ 6:25 Mo Koyfman: The Secret to Winning in Venture; Why Small Funds Outperform Large Funds | 20VC #915 · 20VC with Harry Stebbings

Insight

Thau: VC approaches split into thesis-driven and founder-driven models

“You can either be a very thesis-driven venture capitalist like Fred, or you can be a very founder-driven venture capitalist like Bijan, and I think, you know, what fits better for my personality and the way I see things is being a founder-driven venture capita…”

Kevin Thau Jan 3, 2018 ▶ 11:38 20VC: Why VC Is A Game of Maximising Serendipity, How VCs Can Characterise Their Approach To Working & Product Lessons from Jack Dorsey & Sonos' John MacFarlane with Kevin Thau, General Partner @ Spark Capital