Skip to content
quotesby

About this quote

What does it mean?
If something is physically possible, the multiverse theory implies it must occur in at least one universe.
In plain terms
Physical possibility implies existence somewhere in the multiverse.
What can you take from it?
Possibility guarantees reality across the multiverse.

Where it applies

  • theoretical physics
  • cosmology discussions
  • philosophical reasoning

Putting it to work

  • evaluate physical constraints
  • consider multiverse implications

Questions to consider

  • Does possibility demand existence?
  • How do we verify other universes?

Another view

This relies on specific interpretations of quantum mechanics that are not universally accepted.

More from David Deutsch

  1. It is possible to build a virtual-reality generator whose repertoire includes every possible environment. (Ch. 6)

    Permalink to quote #8
  2. Quantum computation is... a distinctively new way of harnessing nature... It will be the first technology that allows useful tasks to be performed in collabora…

    Permalink to quote #10
  3. Think of all our knowledge-generating processes, our whole culture and civilization, and all the thought processes in the minds of every individual, and indeed…

    Permalink to quote #7

Related quotes

  1. The Garden of Forking Paths is an incomplete, but not false, image of the universe as Ts'ui Pen conceived it. In contrast to Newton and Schopenhauer, your ance…

    Jorge Luis BorgesJorge Luis Borges quote #78
  2. Es gibt noch ein anderes, besseres Leben.

    August von KotzebueAugust von Kotzebue quote #1
  3. Many things are possible. Few things are certain.

    Harry TurtledoveHarry Turtledove quote #2