quantum suicide

noun

A thought experiment in which it is proposed that it is impossible to commit suicide, as at each attempt the universe will split into multiple realities, in at least one of which the person will still be alive.

“Although quantum suicide is a well-reasoned argument, the multi-universe premise on which it stands is more controversial.”

Meanings

nounquantum suicide (uncountable)
  1. uncountablequantum mechanicsA thought experiment in which it is proposed that it is impossible to commit suicide, as at each attempt the universe will split into multiple realities, in at least one of which the person will still be alive.

    Although quantum suicide is a well-reasoned argument, the multi-universe premise on which it stands is more controversial.

Cite this entry
APA

quantum suicide. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/quantum%20suicide

MLA

“quantum suicide.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/quantum%20suicide. Accessed November 4, 2026.

Chicago

WatkinsX Dictionary, s.v. “quantum suicide,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/quantum%20suicide.

Source: quantum suicide on Wiktionary, CC BY-SA 4.0.