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Shaun Maguire

Partner, Sequoia Capital · 1 appearance on the record.

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

investorfounderscientist@shaunmmaguire ↗sequoiacap.com/people/shaun-maguire ↗Wikipedia ↗

Shaun Maguire is a partner at Sequoia Capital focusing on seed and early-stage tech investments, including SpaceX and The Boring Company. He holds a Ph.D. in physics from Caltech and previously co-founded cybersecurity firm Expanse.

17statements → 12claims → 3claims resolved → 67%fully supported → 3.29/5average certainty → 2.53/5average debate potential → ≈4.0/5argument clarity, estimated → 12said about them ↓

2 supported 0 partly supported 1 contradicted 3 not yet assessed 6 not checkable as stated how the 12 claims stand · each chip opens the sources

9 predictions · 3 assertions · 4 opinions · 1 disclosure · every statement was checked. The predictions and assertions are the 12 claims: statements the public record can support or contradict. 3 are resolved, 3 are not yet assessed, and 6 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 Shaun 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

Prediction Held up
Maguire: SpaceX will deliver major direct-to-cell service by 2028
“And then I think in roughly twenty-twenty-eight, it's gonna be the year of direct to sell, and SpaceX talked about this publicly, but it's gonna take time, you know, they just acquired a bunch of spectrum, it takes time to get, you know, Antennas and phones op…”
Shaun Maguire Jan 28, 2026 ▶ 17:17 Elon Musk & The SpaceX IPO: Largest Wealth Event in History? | Shaun Maguire, Sequoia · Sourcery with Molly O'Shea

Their most notable contradicted claim

Assertion Contradicted
Maguire: Starlink scaled to a $1B run rate within 12 months
“And then after Starlink got to about a billion of revenue, which was very fast, it was about 12 months after they got their first dollar of revenue, they were at about a billion of run rate,”
Shaun Maguire Jan 28, 2026 ▶ 24:44 Elon Musk & The SpaceX IPO: Largest Wealth Event in History? | Shaun Maguire, Sequoia · Sourcery with Molly O'Shea

Expressed certainty vs assessment result

none yet certainty 1
none yet certainty 2
100% certainty 3
50% certainty 4
none yet certainty 5

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

How they sound: not measured why? →

We measure speaking style by listening to the audio itself, and a fair number needs at least 2,000 words from one person on tape we have measured. There is too little of Shaun Maguire on measured tape to publish a rate. This says nothing about how they speak.

Everything Shaun Maguire said on Sourcery that made the record, most notable first. Filter by type, assessment or year in the ledger →

Prediction Not checkable as stated
Maguire: Space-based data centers will become absolutely giant
“The public doesn't yet Like, the public hasn't yet gotten to see the full argument, like, hasn't gotten to see the math, but I'll just say, like, I think the math is really compelling, and I think data centers in space are, and I was on TBPN maybe six months a…”
Shaun Maguire Jan 28, 2026 ▶ 5:17 Elon Musk & The SpaceX IPO: Largest Wealth Event in History? | Shaun Maguire, Sequoia · Sourcery with Molly O'Shea
Assertion Not checkable as stated
Maguire: Top AI models outperform average top-five PhD students
“I think we've definitely hit the point where in most fields of math or physics or computer science, like the best models are better than the average PhD student at like a top five research program”
Shaun Maguire Jan 28, 2026 ▶ 31:02 Elon Musk & The SpaceX IPO: Largest Wealth Event in History? | Shaun Maguire, Sequoia · Sourcery with Molly O'Shea
Prediction Open · timeframe Dec 2026
Maguire: SpaceX Starship will fly reliably and reusably in 2026
“I think Elon and the company have gained a lot of confidence that Starship is going to be flying like reliably and reusable this year in 20, 26. Like that's my strong sense.”
Shaun Maguire Jan 28, 2026 ▶ 4:02 Elon Musk & The SpaceX IPO: Largest Wealth Event in History? | Shaun Maguire, Sequoia · Sourcery with Molly O'Shea
Opinion
Maguire: Physical infrastructure will decide the AI race, favoring Musk
“Elon's the best in the world at atoms, and I think atoms are going to be a decisive factor in the AI race.”
Shaun Maguire Jan 28, 2026 ▶ 28:14 Elon Musk & The SpaceX IPO: Largest Wealth Event in History? | Shaun Maguire, Sequoia · Sourcery with Molly O'Shea
Prediction Not checkable as stated
Maguire: xAI will shock people with how quickly it scales
“I just think XAI is gonna shock people with the scale that it gets to quickly.”
Shaun Maguire Jan 28, 2026 ▶ 29:28 Elon Musk & The SpaceX IPO: Largest Wealth Event in History? | Shaun Maguire, Sequoia · Sourcery with Molly O'Shea
Prediction Not checkable as stated
Maguire: SpaceX IPO will boost private AI companies through liquidity
“I think the SpaceX IPO will actually help all private companies this year, including the AI companies, just because it creates a lot of liquidity, and it draws a lot of capital, you know, into tech, and, you know, people are gonna, like, it's, it will just cre…”
Shaun Maguire Jan 28, 2026 ▶ 30:10 Elon Musk & The SpaceX IPO: Largest Wealth Event in History? | Shaun Maguire, Sequoia · Sourcery with Molly O'Shea
Prediction Not checkable as stated
Maguire: SpaceX IPO wealth will not degrade employee culture or motivation
“I don't, I think that in most companies, it's kind of destroyed the culture. I don't think that's going to be the case at SpaceX because SpaceX is such a mission-oriented company, and as I was saying before, the next five years and then five years after that h…”
Shaun Maguire Jan 28, 2026 ▶ 36:20 Elon Musk & The SpaceX IPO: Largest Wealth Event in History? | Shaun Maguire, Sequoia · Sourcery with Molly O'Shea
Opinion
Maguire: SpaceX IPO will be the healthiest wealth creation event in history
“I think this is, I really do think this is, I think this is the healthiest wealth creation event in history.”
Shaun Maguire Jan 28, 2026 ▶ 42:26 Elon Musk & The SpaceX IPO: Largest Wealth Event in History? | Shaun Maguire, Sequoia · Sourcery with Molly O'Shea
Opinion
Maguire: SpaceX is the greatest company of all time
“Look, I personally believe SpaceX is the greatest company of all time. I think the company is just getting started. I, and I have many other great portfolio companies, but I'm willing to say SpaceX is on a different level of every company.”
Shaun Maguire Jan 28, 2026 ▶ 2:31 Elon Musk & The SpaceX IPO: Largest Wealth Event in History? | Shaun Maguire, Sequoia · Sourcery with Molly O'Shea
Prediction Not checkable as stated
Maguire: SpaceX will have excess launch capacity by 2028-2029
“And very quickly, like within two years or so, I think the company is basically going to have an excess Capacity. Like, they could launch all the just Starlink data satellites. They wanted all the direct-to-sell satellites they wanted, and they'd probably stil…”
Shaun Maguire Jan 28, 2026 ▶ 4:14 Elon Musk & The SpaceX IPO: Largest Wealth Event in History? | Shaun Maguire, Sequoia · Sourcery with Molly O'Shea
Prediction Open · timeframe Jan 2031
Maguire: Direct-to-cell will probably surpass Starlink consumer internet in five years
“And when we go like five years from now, all of my underwriting is, I think direct to sell will be probably even bigger than the original consumer internet business.”
Shaun Maguire Jan 28, 2026 ▶ 12:00 Elon Musk & The SpaceX IPO: Largest Wealth Event in History? | Shaun Maguire, Sequoia · Sourcery with Molly O'Shea
Prediction Held up
Maguire: SpaceX will deliver major direct-to-cell service by 2028
“And then I think in roughly twenty-twenty-eight, it's gonna be the year of direct to sell, and SpaceX talked about this publicly, but it's gonna take time, you know, they just acquired a bunch of spectrum, it takes time to get, you know, Antennas and phones op…”
Shaun Maguire Jan 28, 2026 ▶ 17:17 Elon Musk & The SpaceX IPO: Largest Wealth Event in History? | Shaun Maguire, Sequoia · Sourcery with Molly O'Shea
Opinion
Maguire: SpaceX is likely the most vertically integrated US manufacturer
“Like, I think it's probably, probably the most vertically integrated American manufacturing company. And like, when you're vertically integrated, it just lets you move with like a speed and flexibility that No one else has outside of China.”
Shaun Maguire Jan 28, 2026 ▶ 19:12 Elon Musk & The SpaceX IPO: Largest Wealth Event in History? | Shaun Maguire, Sequoia · Sourcery with Molly O'Shea
Assertion Contradicted
Maguire: Starlink scaled to a $1B run rate within 12 months
“And then after Starlink got to about a billion of revenue, which was very fast, it was about 12 months after they got their first dollar of revenue, they were at about a billion of run rate,”
Shaun Maguire Jan 28, 2026 ▶ 24:44 Elon Musk & The SpaceX IPO: Largest Wealth Event in History? | Shaun Maguire, Sequoia · Sourcery with Molly O'Shea
Assertion Supported
Maguire: SpaceX reported 9.2M Starlink consumer and 6M direct-to-cell subscribers
“SpaceX just announced that at the end of last year they had 9.2 million subscribers on the core charlene consumer side and six million direct to sell subscribers.”
Shaun Maguire Jan 28, 2026 ▶ 11:43 Elon Musk & The SpaceX IPO: Largest Wealth Event in History? | Shaun Maguire, Sequoia · Sourcery with Molly O'Shea
Disclosure
Maguire: Sequoia invested ~$1.2B in SpaceX, now worth ~$12B
“I first invested in, you know, and in cumulative invested probably 1.2 billion dollars, and across all the different funds, that position's worth, like, About twelve billion dollars today.”
Shaun Maguire Jan 28, 2026 ▶ 19:44 Elon Musk & The SpaceX IPO: Largest Wealth Event in History? | Shaun Maguire, Sequoia · Sourcery with Molly O'Shea
Prediction Open · timeframe Oct 2026
Maguire: Most United Airlines planes will have Starlink within nine months
“I think it's probably within nine months or so. Most United fleet will be upgraded, but they install Starlink when a plane goes down for its like annual or biannual maintenance.”
Shaun Maguire Jan 28, 2026 ▶ 13:56 Elon Musk & The SpaceX IPO: Largest Wealth Event in History? | Shaun Maguire, Sequoia · Sourcery with Molly O'Shea

The other half of the tape: Shaun Maguire's own voice is left out of every number here. Other people bring the name up 11 times in 6 episodes on Sourcery. 1 statement on the record names them. every mention, with the transcript →

Who brings them up most Molly O'Shea 9Art Levy 1Alfred Lin 1

Statements about Shaun Maguire, by other people (1)

Assertion Supported
O'Shea: Sequoia has invested billions into SpaceX and Elon Musk companies
“I talked to Sean McGuire of Sequoia, who they've invested billions into SpaceX and Elon companies.”
Molly O'Shea Mar 27, 2026 ▶ 24:09 Inside Marc Andreessen & Ben Horowitz’s Multi-Family Office · Sourcery with Molly O'Shea

Every mention by year

tap a year for its mentions
005210420252026episodesmentions
02420252026episodes it came up in
001.322.5420252026episodesmentions per episode
2026 9 mentions in 4 episodes 2 per episode
2025 2 mentions in 2 episodes 1 per episode

Appearances (1)

EpisodeDateSpeaking time
Elon Musk & The SpaceX IPO: Largest Wealth Event in History? | Shaun Maguire, Sequoia · So Jan 28, 2026 31m
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