No documented score

Sergey Brin's IQ

A mathematician's son who left Moscow at six, finished university at 19 and co-founded Google at 25, then spent a decade running its most improbable experiments. No test score ever came with him.

1973Moscow55.76°N
1979College Park, Maryland38.99°N
1995Stanford, California37.43°N

Sergey Brin has no documented IQ score. The “152” seen on billionaire lists has no test, date or source behind it, his record is in papers and patents, not psychometrics.

Early life, 1973–1990

Two cities, one family of mathematicians

Moscow1973–1979

Born 21 August 1973 to Jewish parents, both Moscow State graduates. His father, Michael, wanted to be an astronomer but was steered away from physics by the antisemitism of Soviet academia, and worked as an economist at the state planning agency.

When the family applied to emigrate in 1978, both parents lost their jobs. They left in May 1979, helped by the Hebrew Immigrant Aid Society.

Maryland1979–1990

Michael became a mathematics professor at the University of Maryland; his mother, Eugenia, a research scientist at NASA's Goddard Space Flight Center. Sergey started school with little English and was teased for his accent.

A Commodore 64 for his ninth birthday made computers the obvious outlet; at home his father pushed him through advanced maths, and the family kept speaking Russian.

Education, written as a proof

Each step follows from the last. The conclusion is left open.

LEMMA 1
to 1990
Eleanor Roosevelt High School

A public magnet school in Greenbelt, Maryland, after Paint Branch Montessori in Adelphi.

LEMMA 2
1990–93
University of Maryland, College Park

BS in computer science and mathematics with honours, finished in three years at age 19, at the university where his father taught.

LEMMA 3
1993
NSF Graduate Research Fellowship

A National Science Foundation fellowship funded his move to graduate school at Stanford.

LEMMA 4
1993–95
Stanford University, MS

Master's in computer science. Research on data mining and extracting patterns from large data sets.

CONCLUSION
1995 →
Stanford PhD, on leave

Met Larry Page at a campus tour in 1995. Took leave from the doctorate to build Google and never returned to finish it. Q.E.D. unproven.

The moonshot board

From 2010 Brin ran Google X, the lab for long-shot projects. Filter by how they ended.

2009Operating
Self-driving car

Started inside Google before X had a name; spun out in 2016 as Waymo, which now runs driverless ride-hailing in several US cities.

2012Shut down
Glass

Brin unveiled the head-mounted display with a live skydiving demo. The consumer version was pulled in 2015; the enterprise edition ended in 2023.

2013Shut down
Loon

Stratospheric balloons carrying cell service to remote areas. Graduated from X in 2018, closed in 2021 when costs outran the market.

2012Operating
Wing

Drone delivery, graduated from X in 2018; now delivers small parcels in the US, Australia and elsewhere.

2013Shut down
Makani

Energy-generating kites tethered to the ground. Acquired by X in 2013 and shut down in 2020.

Collected works

1997PAPER
Dynamic itemset counting and implication rules for market basket data

With Motwani, Ullman and Tsur, SIGMOD 1997. Faster ways to find items that appear together in large transaction sets.

1998PAPER
Extracting patterns and relations from the World Wide Web

Introduced DIPRE, which bootstrapped from a few examples (like book–author pairs) to harvest many more from the web.

1998PAPER
The Anatomy of a Large-Scale Hypertextual Web Search Engine

With Larry Page, WWW7 in Brisbane. The design of Google's prototype, including PageRank; among the most-cited computer-science papers.

1998COMPANY
Google

Co-founded with Page. Served as president of technology, then president of Alphabet from 2015 until stepping down in 2019.

2008RESEARCH
Parkinson's disease funding

After genetic testing showed he carries a LRRK2 mutation linked to Parkinson's, he became one of the largest private funders of research into the disease.

2023VENTURE
LTA Research airships

His airship company flew the Pathfinder 1, a large rigid electric airship, after receiving an FAA certificate in 2023.

2023 →ROLE
Return to Google AI

Came back to work day-to-day with the teams building Google's Gemini models.

Sources

  1. Brin, S. & Page, L. (1998). The Anatomy of a Large-Scale Hypertextual Web Search Engine. WWW7
  2. Brin, S. (1998). Extracting Patterns and Relations from the World Wide Web. WebDB
  3. Vise, D. & Malseed, M. (2005). The Google Story. Delacorte
  4. Alphabet Inc. founders' letter (December 2019)
  5. What's Your IQ editorial review of circulated figures

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