Freeman Dyson

Theoretical Physicist and Mathematician
December 15, 1923 – February 28, 2020

Freeman John Dyson was a British-American theoretical physicist and mathematician known for his works in quantum field theory, astrophysics, random matrices, mathematical formulation of quantum mechanics, condensed matter physics, nuclear physics, and engineering. He was professor emeritus in the Institute for Advanced Study in Princeton and a member of the board of sponsors of the Bulletin of the Atomic Scientists.

Dyson originated several concepts that bear his name, such as Dyson’s transform, a fundamental technique in additive number theory, which he developed as part of his proof of Mann’s theorem; the Dyson tree, a hypothetical genetically engineered plant capable of growing in a comet; the Dyson series, a perturbative series where each term is represented by Feynman diagrams; the Dyson sphere, a thought experiment that attempts to explain how a space-faring civilization would meet its energy requirements with a hypothetical megastructure that completely encompasses a star and captures a large percentage of its power output; and Dyson’s eternal intelligence, a means by which an immortal society of intelligent beings in an open universe could escape the prospect of the heat death of the universe by extending subjective time to infinity while expending only a finite amount of energy.

Dyson disagreed with the scientific consensus on climate change. He believed that some of the effects of increased CO2 levels are favourable and not taken into account by climate scientists, such as increased agricultural yield, and further that the positive benefits of CO2 likely outweigh the negative effects. He was sceptical about the simulation models used to predict climate change, arguing that political efforts to reduce causes of climate change distract from other global problems that should take priority.

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Cover image for Infinite in All Directions

Date

1985

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Book

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20

Infinite in All Directions

Infinite in All Directions explores science and religion as two complementary ways of understanding the universe. Based on Freenman Dyson’s Gifford Lectures, the book celebrates diversity, both in the natural world and human responses to it. Dyson contrasts different scientific approaches using Manchester and Athens as symbols. He delves into the origin and evolution of life, highlighting how life thrives on diversity. In the final chapter, Dyson speculates on the future of life and the universe, blending science with a touch of science fiction and theology.

Mentioned in 4 documents

James Glattfelder

Information — Consciousness — Reality

This open access book chronicles the rise of a new scientific paradigm offering novel insights into the age-old enigmas of existence. Over 300 years ago, the human mind discovered the machine code of reality: mathematics. By utilizing abstract thought systems, humans began to decode the workings of the cosmos. From this understanding, the current scientific paradigm emerged, ultimately discovering the gift of technology. Today, however, our island of knowledge is surrounded by ever longer shores of ignorance. Science appears to have hit a dead end when confronted with the nature of reality and consciousness. In this fascinating and accessible volume, James Glattfelder explores a radical paradigm shift uncovering the ontology of reality. It is found to be information-theoretic and participatory, yielding a computational and programmable universe.

Hans Moravec

Mind Children

Imagine attending a lecture at the turn of the twentieth century in which Orville Wright speculates about the future of transportation, or one in which Alexander Graham Bell envisages satellite communications and global data banks. Mind Children, written by an internationally renowned roboticist, offers a comparable experience: a mind-boggling glimpse of a world we may soon share with our artificial progeny. Filled with fresh ideas and insights, this book is one of the most engaging and controversial visions of the future ever written by a serious scholar.

Sara Walker and Lex Fridman

Physics of Life, Time, Complexity, and Aliens

Sara Walker and Lex Fridman explore life’s grand mysteries, touching on the nature of existence and the origins of life to the potential of artificial intelligence and the future of consciousness. Walker’s unique perspective challenges conventional wisdom, inviting us to reconsider our place in the cosmic dance.

Frank Tipler

The Omega Point as Eschaton

Frank Tipler presents an outline of the Omega Point theory, which is a model for an omnipresent, omniscient, omnipotent, evolving, personal God who is both transcendent to spacetime and immanent in it, and who exists necessarily. The model is a falsifiable physical theory, deriving its key concepts not from any religious tradition but from modern physical cosmology and computer science; from scientific materialism rather than revelation. Four testable predictions of the model are given. The theory assumes that thinking is a purely physical process of the brain, and that personality dies with the brain. Nevertheless, he shows that the Omega Point theory suggests a future universal resurrection of the dead very similar to the one predicted in the Judeo-Christian-Islamic tradition. The notions of “grace” and the “beatific vision” appear naturally in the model.