# Max Tegmark

Max Tegmark
Born May 5, 1967 (age 49)
Sweden
Nationality Swedish-American
Fields Cosmology Physics
Institutions MIT
Alma mater Royal Institute of Technology
UC Berkeley

Max Erik Tegmark[1] (born Max Shapiro[2][3] 5 May 1967) is a Swedish-American cosmologist. Tegmark is a professor at the Massachusetts Institute of Technology and the scientific director of the Foundational Questions Institute. He is also a co-founder of the Future of Life Institute, and has accepted donations from Elon Musk to investigate existential risk from advanced artificial intelligence.[4][5][6]

## Biography

### Early life

Tegmark was born in Sweden, the son of Karin Tegmark and American-born professor emeritus of mathematics Harold S. Shapiro. He graduated from the Royal Institute of Technology in Stockholm, Sweden and the Stockholm School of Economics and later received his Ph.D. from the University of California, Berkeley. After having worked at the University of Pennsylvania, he is now at the Massachusetts Institute of Technology. While in high school, Tegmark and a friend created and sold a word processor written in pure machine code for the Swedish eight-bit computer ABC 80,[2] and a 3D Tetris-like game.[7]

### Career

His research has focused on cosmology, combining theoretical work with new measurements to place constraints on cosmological models and their free parameters, often in collaboration with experimentalists. He has over 200 publications, of which nine have been cited over 500 times.[8] He has developed data analysis tools based on information theory and applied them to cosmic microwave background experiments such as COBE, QMAP, and WMAP, and to galaxy redshift surveys such as the Las Campanas Redshift Survey, the 2dF Survey and the Sloan Digital Sky Survey.

With Daniel Eisenstein and Wayne Hu, he introduced the idea of using baryon acoustic oscillations as a standard ruler.[9][10] With Angelica de Oliveira-Costa and Andrew Hamilton, he discovered the anomalous multipole alignment in the WMAP data sometimes referred to as the "axis of evil".[9][11] With Anthony Aguirre, he developed the cosmological interpretation of quantum mechanics.

Tegmark has also formulated the "Ultimate Ensemble theory of everything", whose only postulate is that "all structures that exist mathematically exist also physically". This simple theory, with no free parameters at all, suggests that in those structures complex enough to contain self-aware substructures (SASs), these SASs will subjectively perceive themselves as existing in a physically "real" world. This idea is formalized as the mathematical universe hypothesis,[12] described in his book Our Mathematical Universe.

Tegmark was elected Fellow of the American Physical Society in 2012 for, according to the citation, "his contributions to cosmology, including precision measurements from cosmic microwave background and galaxy clustering data, tests of inflation and gravitation theories, and the development of a new technology for low-frequency radio interferometry".[13]

### Personal life

He was married to astrophysicist Angelica de Oliveira-Costa in 1997, and divorced in 2009. They have two sons.[14] On August 5, 2012, Tegmark married Meia Chita, a Boston University Ph.D. candidate.[15][16]

## References

1. ^
2. ^ a b "buzzword free zone - home of magnus bodin". X42.com. Retrieved 2012-11-01.
3. ^ Sveriges befolkning 1980, CD-ROM, Version 1.02, Sveriges Släktforskarförbund (2004).
4. ^
5. ^ "Elon Musk:Future of Life Institute Artificial Intelligence Research Could be Crucial". Bostinno. 2015. Retrieved 21 Jun 2015.
6. ^ "Elon Musk Donates \$10M To Make Sure AI Doesn't Go The Way Of Skynet". TechCrunch. 2015. Retrieved 21 Jun 2015.
7. ^ Tegmark, Max. The Mathematical Universe. p. 55.
8. ^ "INSPIRE-HEP: M Tegmark's profile". Inspire-Hep.
9. ^ a b "Tegmark - Philosophy of Cosmology". philosophy-of-cosmology.ox.ac.uk. Retrieved 2016-02-15.
10. ^ Eisenstein, Daniel J.; Hu, Wayne; Tegmark, Max. "Cosmic Complementarity: ${\displaystyle H_{0}}$ and ${\displaystyle \Omega _{m}}$ from Combining Cosmic Microwave Background Experiments and Redshift Surveys". The Astrophysical Journal. 504 (2): L57–L60. arXiv:. Bibcode:1998ApJ...504L..57E. doi:10.1086/311582.
11. ^ Tegmark, Max; de Oliveira-Costa, Angélica; Hamilton, Andrew (1 December 2003). "High resolution foreground cleaned CMB map from WMAP". Physical Review D. 68 (12). arXiv:. Bibcode:2003PhRvD..68l3523T. doi:10.1103/PhysRevD.68.123523.
12. ^ Tegmark, Max. "The Mathematical Universe". Foundations of Physics. 38 (2): 101–150. arXiv:. Bibcode:2008FoPh...38..101T. doi:10.1007/s10701-007-9186-9. a short version of which is available at Shut up and calculate. (in reference to David Mermin's famous quote "shut up and calculate" [1]
13. ^ APS Archive (1990-present)
14. ^ "Max Tegmark Homepage". Space.mit.edu. Retrieved 2012-11-01.
15. ^ "Welcome to Meia and Max's wedding". Space.mit.edu. Retrieved 2014-01-10.
16. ^ "Meia Chita-Tegmark". Huffington Post. Retrieved 2015-01-10.
17. ^ "Max Tegmark forecasts the future". New Scientist. 18 November 2006. Retrieved 2012-11-01.
18. ^ The Forum episode guide. BBC Radio 4. Accessed 2014-04-28.
19. ^ The Perpetual Earth Program
20. ^ http://www.imdb.com/title/tt2458876/fullcredits?ref_=tt_ov_st_sm
21. ^ "The Multiverse & You (& You & You & You...)". Sam Harris. 23 September 2015. Retrieved 2015-11-22.