Human extinction: the story on HearLore

Atomic Shadows And Public Fear

The invention of the atomic bomb triggered widespread discussion among scientists and intellectuals about human survival risks. Bertrand Russell wrote in 1945 that mankind faced a clear alternative between perishing or acquiring common sense. Leo Szilard suggested it was technologically feasible to build a cobalt bomb capable of rendering the planet unlivable. A 1950 Gallup poll found that 19% of Americans believed another world war would mean the end of humanity. Rachel Carson's book Silent Spring raised awareness of environmental catastrophe in 1962. Carl Sagan argued in 1983 that nuclear war imperils all descendants for as long as humans exist. The discovery of nuclear winter in the early 1980s made this specific mechanism for extinction prominent again. Brandon Carter proposed the Doomsday argument in 1983 using Bayesian probability to predict total human numbers. John Leslie published The End of the World in 1996 as an academic treatment of extinction science and ethics. Sir Martin Rees published Our Final Hour in 2003 arguing that advances in certain technologies create new threats to survival.

When did Georges Cuvier identify 23 extinct prehistoric species?

Georges Cuvier identified 23 extinct prehistoric species by the year 1800 using fossil evidence. This work challenged ancient philosophical doctrines that viewed extinction as impossible.

What is the estimated probability of human extinction by 2100 according to Metaculus users on the 29th of July 2025?

Metaculus users estimated a 1% probability of human extinction by 2100 on the 29th of July 2025. This figure represents a specific prediction made by community forecasters regarding future survival risks.

Who proposed the Doomsday argument in 1983 and what was its purpose?

Brandon Carter proposed the Doomsday argument in 1983 using Bayesian probability to predict total human numbers. The theory suggests humanity has a 95% probability of being extinct within 8 million years according to J. Richard Gott's formulation.

What are the main reasons the Voluntary Human Extinction Movement advocates for ending reproduction?

The Voluntary Human Extinction Movement calls for refraining from reproduction to stop further environmental degradation caused by human civilization. Members believe this approach allows the species to go peacefully extinct due to ethical concerns about resource consumption and ecological destruction.

When did Bill Gates state there is a 10-15% chance of a natural pandemic hitting in four years?

Bill Gates told The Wall Street Journal on the 27th of January 2025 that there is a 10-15% chance of a natural pandemic hitting in four years. This statement highlights current expert assessments regarding global health threats.

Human extinction.

Atomic Shadows And Public Fear

Common questions

When did Georges Cuvier identify 23 extinct prehistoric species?

What is the estimated probability of human extinction by 2100 according to Metaculus users on the 29th of July 2025?

Who proposed the Doomsday argument in 1983 and what was its purpose?

What are the main reasons the Voluntary Human Extinction Movement advocates for ending reproduction?

When did Bill Gates state there is a 10-15% chance of a natural pandemic hitting in four years?

Probability Estimates And Expert Warnings

Technological Perils And Future Risks

Moral Imperatives And Cosmic Value

Voluntary Extinction Movements