Stephen Wolfram  

Born  London, England, United Kingdom  29 August 1959
Nationality  British, American 
Education  Dragon School^{[6]} Eton College 
Alma mater 

Known for  
Awards  MacArthur Fellowship (1981) 
Scientific career  
Fields  
Institutions  
Thesis  Some Topics in Theoretical HighEnergy Physics (1980) 
Website 
Stephen Wolfram (born August 29, 1959) is a BritishAmerican^{[7]} computer scientist, physicist, and businessman. He is known for his work in computer science, mathematics, and in theoretical physics.^{[8]}^{[9]} He is the author of the book A New Kind of Science, published in 2002.^{[2]} His book An Elementary Introduction to the Wolfram Language appeared in 2015 and Idea Makers: Personal Perspectives on the Lives & Ideas of Some Notable People appeared in 2016. In 2012 he was named an inaugural fellow of the American Mathematical Society.^{[10]}
As a businessman, he is the founder and CEO of the software company Wolfram Research where he worked as chief designer of Mathematica and the Wolfram Alpha answer engine. His recent work has been on knowledgebased programming, expanding and refining the programming language of Mathematica into what is now called the Wolfram Language.
Stephen Wolfram was born in London in 1959 to Hugo and Sybil Wolfram.
Wolfram's father, Hugo Wolfram (1925–2015), a textile manufacturer born in Bochum, Germany, served as managing director of the Lurex Company, makers of the fabric Lurex and was the author of three novels.^{[11]}^{[12]}^{[13]}^{[14]} He emigrated to England in 1933.^{[15]} When World War II broke out, he left school at 15 and subsequently found it hard to get a job since he was regarded as an "enemy alien." As an adult, he took correspondence courses in philosophy and psychology.^{[11]}
Wolfram's mother, Sybil Wolfram (1931–1993; born Sybille Misch) was a Fellow and Tutor in Philosophy at Lady Margaret Hall at University of Oxford from 1964 to 1993. She published two books, Philosophical Logic: An Introduction (1989)^{[16]} and Inlaws and Outlaws: Kinship and Marriage in England (1987).^{[17]}^{[18]} She was the translator of Claude LéviStrauss's La pensée sauvage (The Savage Mind), but later disavowed the translation.^{[19]}^{[20]} She was the daughter of criminologist and psychoanalyst Kate Friedlander (1902–1949), an expert on the subject of juvenile delinquency,^{[21]} and the physician Walter Misch (1889–1943) who, together, wrote Die vegetative Genese der neurotischen Angst und ihre medikamentöse Beseitigung.^{[22]} After the Reichstag fire in 1933, she emigrated from Berlin, Germany to England with her parents and Jewish psychoanalyst, Paula Heimann (1899–1982).^{[23]}^{[24]}^{[25]}
Wolfram is married to a mathematician. They have four children together.^{[26]}^{[27]}
As a young child, Wolfram initially struggled in school and had difficulties learning arithmetic.^{[28]} At the age of 12, he wrote a dictionary on physics.^{[29]} By 13 or 14, he had written three books on particle physics.^{[30]}^{[31]}^{[32]} They have not been published.
Wolfram was a wunderkind. By age 15, he began research in applied quantum field theory and particle physics and published scientific papers. Topics included matter creation and annihilation, the fundamental interactions, elementary particles and their currents, hadronic and leptonic physics, and the parton model, published in professional peerreviewed scientific journals including Nuclear Physics B, Australian Journal of Physics, Nuovo Cimento, and Physical Review D.^{[33]} Working independently, Wolfram published a widely cited paper on heavy quark production at age 18^{[5]} and nine other papers,^{[18]} and continued research and to publish on particle physics into his early twenties. Wolfram's work with Geoffrey C. Fox on the theory of the strong interaction is still used in experimental particle physics.^{[34]}
He was educated at Eton College, but left prematurely in 1976.^{[35]} He entered St. John's College, Oxford at age 17 but found lectures "awful",^{[18]} and left in 1978^{[36]} without graduating^{[37]}^{[38]} to attend the California Institute of Technology, the following year, where he received a PhD^{[39]} in particle physics on November 19, 1979 at age 20.^{[40]} Wolfram's thesis committee was composed of Richard Feynman, Peter Goldreich, Frank J. Sciulli and Steven Frautschi, and chaired by Richard D. Field.^{[40]}^{[41]}
A 1981 letter from Feynman to Gerald Freund giving reference for Wolfram for the MacArthur grant appears in Feynman's collected letters, Perfectly Reasonable Deviations from the Beaten Track. Following his PhD, Wolfram joined the faculty at Caltech and became the youngest recipient^{[42]} of the MacArthur Fellowships in 1981, at age 21.^{[37]}
In 1983, Wolfram left for the School of Natural Sciences of the Institute for Advanced Study in Princeton, where he conducted research into cellular automata,^{[43]}^{[44]}^{[45]}^{[46]}^{[47]} mainly with computer simulations. He produced a series of papers systematically investigating the class of elementary cellular automata, conceiving the Wolfram code, a naming system for onedimensional cellular automata, and a classification scheme for the complexity of their behaviour.^{[48]} He conjectured that the Rule 110 cellular automaton might be Turing complete, which was later proved correct.^{[49]}
A 1985 letter, from Feynman to Wolfram, also appears in Feynman's letters. In it, in response to Wolfram writing to him that he was thinking about creating some kind of institute where he might study complex systems, Feynman tells Wolfram, "You do not understand ordinary people," and advises him "find a way to do your research with as little contact with nontechnical people as possible."^{[50]}
In the mid1980s, Wolfram worked on simulations of physical processes (such as turbulent fluid flow) with cellular automata on the Connection Machine alongside Feynman^{[51]} and helped initiate the field of complex systems, founding the first institute devoted to this subject, The Center for Complex Systems Research (CCSR) at the University of Illinois at Urbana–Champaign^{[52]} and the journal Complex Systems in 1987.^{[52]} As the first journal in the field, Complex Systems has published many papers over the course of three decades. Complex Systems has developed a broad base of readers and contributors from academia, industry, government and the general public in over 50 countries around the world.
Main article: Symbolic Manipulation Program 
Wolfram led the development of the computer algebra system SMP (Symbolic Manipulation Program) in the Caltech physics department during 1979–1981. A dispute with the administration over the intellectual property rights regarding SMP—patents, copyright, and faculty involvement in commercial ventures—eventually caused him to resign from Caltech.^{[53]} SMP was further developed and marketed commercially by Inference Corp. of Los Angeles during 1983–1988.
Main article: Institute for Advanced Study 
In 1983, Wolfram joined the Institute for Advanced Study, the Princeton, New Jerseybased former home of Albert Einstein. But by that time, he was no longer interested in particle physics. Instead, he began pursuing what he viewed as more creative areasspecifically, cellular automata. Wolfram methodically analyzed sets of rules, developing a classification system that rated the complexity of various cellular automataall with the intention of clarifying the way we view complexity in the real world. In Wolfram's mind, studying the results of cellularautomata runs on the computer could unlock deep truths about the universe itself.^{[54]}
Wolfram's cellularautomata work came to be cited in more than 10,000 papers.^{[54]}
Main article: Mathematica 
In 1986 Wolfram left the Institute for Advanced Study for the University of Illinois at Urbana–Champaign where he founded their Center for Complex Systems Research and started to develop the computer algebra system Mathematica, which was first released in 1988 when he left academia. In 1987 he founded a company called Wolfram Research which continues to develop and market the program.^{[5]}
Near the end of Sybil Wolfram's life, as part of her research for Inlaws and Outlaws, she used her son's program Mathematica to analyze her data.^{[23]}
Wolfram's younger brother, Conrad Wolfram, serves as CEO of Wolfram Research Europe, Ltd.^{[55]}^{[56]}
Main article: A New Kind of Science 
From 1992 to 2002, he worked on his controversial book A New Kind of Science,^{[5]}^{[57]} which presents an empirical study of very simple computational systems. Additionally, it argues that for fundamental reasons these types of systems, rather than traditional mathematics, are needed to model and understand complexity in nature. Wolfram's conclusion is that the universe is digital in its nature, and runs on fundamental laws which can be described as simple programs. He predicts that a realization of this within the scientific communities will have a major and revolutionary influence on physics, chemistry and biology and the majority of the scientific areas in general, which is the reason for the book's title.
Since the release of the book in 2002, Wolfram has split his time between developing Mathematica and encouraging people to get involved with the subject matter of A New Kind of Science by giving talks, holding conferences, and starting a summer school devoted to the topic.^{[58]}
In 2003, Wolfram hosted the first Wolfram Summer School at Brown University  a program designed to provide educational and career opportunities by learning and conducting projects at the frontiers of science, technology, and innovation. In 2007, the summer school began being hosted by the University of Vermont at Burlington, with the exception of the year 2009 which was held at the Istituto di Scienza e Tecnologie dell'Informazione of the CNR in Pisa, Italy. In 2012, the program was held at Curry College in Milton, Massachusetts. Since 2013, the Wolfram Summer School has been held annually at Bentley University in Waltham, Massachusetts.
At the core of A New Kind of Science is the idea of exploring a new abstract universe: a computational universe of simple programs. In A New Kind of Science, Wolfram shows how remarkably simple programs in his computational universe captures the essence of the complexity  and beauty  of many systems in nature. This led to the creation of Wolfram Tones which works by taking simple programs from Wolfram's computational universe, applying music theory, and Wolfram Language algorithms to render them as music. Each program in effect defines a virtual world, with its own special story  and Wolfram Tones captures it as a musical composition.
In A New Kind of Science, Wolfram found what was then the simplest known universal Turing machine  with 2 states and 5 colors. However, he also did an extensive search of simpler Turing machines and in doing that, found a much simpler candidate for universality, a 2,3 Turing machine. On May 14, 2007, (the fifth anniversary of the publication of A New Kind of Science), Wolfram announced a $25,000 prize for the first person to determine whether or not the 2,3 Turing machine was actually universal or not, and could provide proof. Five months after the contest's announcement, an undergraduate student from Birmingham, UK, successfully found the 2,3 Turing machine to be universal and provided a 40page paper to prove his findings.
Main article: Wolfram Alpha 
In March 2009, Wolfram announced WolframAlpha, an answer engine. WolframAlpha later launched in May 2009,^{[59]} and a paidfor version with extra features launched on February 2012.^{[60]} The engine is based on natural language processing and a large library of algorithms, and answers queries using the approach described in A New Kind of Science. The application programming interface allows other applications to extend and enhance Alpha.^{[61]} Wolfram believes that as Wolfram Alpha comes into common use, "It will raise the level of scientific things that the average person can do."^{[62]}
Wolfram Alpha is one of the answer engines behind Microsoft's Bing^{[63]}^{[64]} and Apple's Siri answering factual questions.^{[65]}
In 2010, Wolfram cofounded Touch Press along with Theodore Gray, Max Whitby, and John Cromie. The company specialises in creating indepth premium apps and games covering a wide range of educational subjects designed for children, parents, students, and educators. Since the launch, Touch Press has published more than 100 apps.
Main article: Wolfram Language 
In March 2014, at the annual South by Southwest event, Wolfram officially announced the Wolfram Language as a new general multiparadigm programming language.^{[66]} The documentation for the language was prereleased in October 2013 to coincide with the bundling of Mathematica and the Wolfram Language on every Raspberry Pi computer. While the Wolfram Language has existed for over 25 years as the primary programming language used in Mathematica, it was not officially named until 2014.^{[67]} Wolfram's son, Christopher Wolfram, appeared on the program of SXSW giving a livecoding demonstration using Wolfram Language^{[68]} and has blogged about Wolfram Language for Wolfram Research.^{[69]}
On December 8, 2015, Wolfram published the book "An Elementary Introduction to the Wolfram Language" to introduce people, with no knowledge of programming, to the Wolfram Language and the kind of computational thinking it allows.^{[70]} The release of the second edition of the book^{[71]} coincided with a "CEO for hire" competition during the 2017 Collision tech conference.^{[72]}
Both Stephen Wolfram and Christopher Wolfram were involved in helping create the alien language for the film Arrival, for which they used the Wolfram Language.^{[73]}^{[74]}^{[75]}
The significance data has on the products Wolfram creates transfers into his own life. He has an extensive log of personal analytics, including emails received and sent, keystrokes made, meetings and events attended, phone calls, even physical movement dating back to the 1980s. He has stated "[personal analytics] can give us a whole new dimension to experiencing our lives".^{[76]}